Upgrade to 0.70 - Communication Errors?

Techy

I have just updated my Repetier Server from version 0.65 to 0.70. Now I can't print anymore. If I start a print, it first kind of works, but after the initial heating the printer makes some moves and does extrude a relative big amount of filament. After round about 3o seconds the printer stops. The 3d-object is not finished, but the web-interface shows, that the print was finished.
I use the Marlin firmware. The baud-rate seems good, because I'm able to move the printer and retrieve information with the M501 command in the console. I restarted the Repetier Server and the pc serveral times. No effects. Printing with the Repetier Host works still just fine.

The error in the log-file starts like this:

< 19:50:13.935: N174 G0 F9000 X-3.048 Y-3.643
< 19:50:13.936: N175 G1 F2700 E4.84506
> 19:50:13.936: ok
> 19:50:13.939: Error:checksum mismatch, Last Line: 161
< 19:50:13.942: Resend: G1 X14.200 Y10.723 E1.71181
> 19:50:13.942: Resend: 162
< 19:50:13.942: Resend: G1 X-14.200 Y10.723 E3.12869
< 19:50:13.943: Resend: G1 X-14.200 Y-3.427 E3.83464
> 19:50:13.943: ok
< 19:50:13.944: Resend: G1 X-10.801 Y-3.427 E4.00421
< 19:50:13.944: Resend: G1 X-10.519 Y-4.356 E4.05265
> 19:50:13.944: ok
> 19:50:13.947: Error:Line Number is not Last Line Number+1, Last Line: 161
> 19:50:13.948: Resend: 162
< 19:50:13.948: Resend: G1 X-9.995 Y-5.555 E4.11793
< 19:50:13.948: Resend: G1 X-9.334 Y-6.686 E4.18329
> 19:50:13.948: ok
> 19:50:13.951: Error:No Line Number with checksum, Last Line: 161
< 19:50:13.955: Resend: G1 X-8.540 Y-7.742 E4.24920
< 19:50:13.955: Resend: G1 X-7.621 Y-8.699 E4.31540
> 19:50:13.956: ok
> 19:50:13.956: Error:Line Number is not Last Line Number+1, Last Line: 161

What can I do to make the Repetier Server print as perfect as before?
Which change of the server software could cause this?

Repetier

2 Quick question for better analysis and undersdtanding the problem.

1. Which marlin version did you use.

2. Do you have a few more lines especialy from sending line 150 downwards so I can see how the problem evolves. It looks a bit like marlin does not like the resend response so I need to know which lines server is really sending. Will then make an emergency update 0.70.1 when I have found the source.

Techy

I'm currently using the Marlin version 1.0.2-1 with a baudrate of 230400.
2. Here is another part of the log-file:

< 19:50:13.898: N148 M105
< 19:50:13.899: N149 G92 E0 ;zero the extruded length
> 19:50:13.899: ok
< 19:50:13.899: N150 G1 F200 E5 ;extrude 5mm of feed stock
< 19:50:13.900: N151 G92 E0 ;zero the extruded length again
> 19:50:13.900: ok
< 19:50:13.902: N152 M107
> 19:50:13.902: ok
< 19:50:13.903: N153 G0 F9000 X0.017 Y-10.960 Z0.300
> 19:50:13.903: ok
< 19:50:13.906: N154 G1 F720 X1.863 Y-13.422 E0.15352
< 19:50:13.907: N155 G1 X7.599 Y-8.718 E0.52362
> 19:50:13.907: ok T:209.0 /210.0 B:0.0 /0.0 T0:209.0 /210.0 @:42 B@:0
< 19:50:13.910: N156 G1 X8.515 Y-7.768 E0.58946
< 19:50:13.910: N157 G1 X9.311 Y-6.718 E0.65519
> 19:50:13.911: ok
< 19:50:13.911: N158 G1 X9.980 Y-5.584 E0.72088
< 19:50:13.911: N159 G1 X10.513 Y-4.369 E0.78707
> 19:50:13.912: ok
< 19:50:13.914: N160 G1 X10.799 Y-3.427 E0.83619
< 19:50:13.914: N161 G1 X14.200 Y-3.427 E1.00586
> 19:50:13.915: ok
< 19:50:13.915: N162 G1 X14.200 Y10.723 E1.71181
< 19:50:13.916: N163 G1 X-14.200 Y10.723 E3.12869
> 19:50:13.916: ok
< 19:50:13.918: N164 G1 X-14.200 Y-3.427 E3.83464
< 19:50:13.918: N165 G1 X-10.801 Y-3.427 E4.00421
> 19:50:13.919: ok
< 19:50:13.922: N166 G1 X-10.519 Y-4.356 E4.05265
< 19:50:13.922: N167 G1 X-9.995 Y-5.555 E4.11793
> 19:50:13.923: ok
< 19:50:13.926: N168 G1 X-9.334 Y-6.686 E4.18329
< 19:50:13.926: N169 G1 X-8.540 Y-7.742 E4.24920
> 19:50:13.927: ok
< 19:50:13.930: N170 G1 X-7.621 Y-8.699 E4.31540
< 19:50:13.930: N171 G1 X-1.823 Y-13.467 E4.68991
> 19:50:13.931: ok
< 19:50:13.934: N172 G1 X0.017 Y-10.960 E4.84506
< 19:50:13.934: N173 G1 F2700 E0.34506
> 19:50:13.935: ok
< 19:50:13.935: N174 G0 F9000 X-3.048 Y-3.643
< 19:50:13.936: N175 G1 F2700 E4.84506
> 19:50:13.936: ok
> 19:50:13.939: Error:checksum mismatch, Last Line: 161

I just also noted this part (some kind of reset):

> 19:50:17.132: Error:Line Number is not Last Line Number+1, Last Line: 161
> 19:50:17.133: Resend: 162
< 19:50:17.134: N835 G1 F1260 X-2.247 Y3.096 E35.14563
< 19:50:17.134: N836 G0 F9000 X-3.500 Y3.783
> 19:50:17.134: ok
> 19:50:17.144: Error:Line Number is not Last Line Number+1, Last Line: 161
< 19:50:17.145: M110 N0
< 19:50:17.147: N1 G1 F1260 X-2.575 Y2.858 E35.22177
> 19:50:17.148: Resend: 162
< 19:50:17.148: N2 G0 F9000 X-4.065 Y3.783
> 19:50:17.149: ok
< 19:50:17.152: N3 G1 F1260 X-3.795 Y3.512 E35.24404
< 19:50:17.153: N4 G0 F9000 X-4.631 Y3.783
> 19:50:17.153: ok
< 19:50:17.160: N5 G1 F1260 X-4.531 Y3.647 E35.26642
< 19:50:17.161: N6 G1 X-5.084 Y3.647 E35.28854
> 19:50:17.161: ok
< 19:50:17.164: N7 G1 X-4.926 Y3.512 E35.30064
< 19:50:17.165: N8 G0 F9000 X-5.762 Y3.783
> 19:50:17.165: ok
< 19:50:17.169: N9 G1 F1260 X-5.492 Y3.512 E35.32291
< 19:50:17.170: N10 G0 F9000 X-6.328 Y3.783
> 19:50:17.170: ok
< 19:50:17.177: N11 G1 F1260 X-6.334 Y3.647 E35.34521
< 19:50:17.178: N12 G1 X-6.617 Y3.647 E35.36749
> 19:50:17.178: ok
< 19:50:17.179: N13 G1 X-6.941 Y3.547 E35.38974
< 19:50:17.179: N14 G1 X-7.189 Y3.512 E35.40432
> 19:50:17.180: ok
< 19:50:17.181: N15 G0 F9000 X-7.400 Y3.923 Z1.700
< 19:50:17.182: N16 G1 F1740 X-7.400 Y3.373 E35.43633
> 19:50:17.182: ok
< 19:50:18.394: N17 M105
< 19:50:18.394: N18 G1 X-3.428 Y3.373 E35.66753
> 19:50:18.395: ok
< 19:50:18.397: N19 G1 X-3.097 Y2.707 E35.71081
< 19:50:18.397: N20 G1 X-3.654 Y1.972 E35.76449
> 19:50:18.398: ok
< 19:50:19.426: N21 M105
< 19:50:19.427: N22 G1 X-3.920 Y1.519 E35.79507
> 19:50:19.427: ok
> 19:50:19.429: Error:checksum mismatch, Last Line: 12
< 19:50:19.432: Resend: G1 X-6.941 Y3.547 E35.38974
> 19:50:19.432: Resend: 13
< 19:50:19.432: Resend: G1 X-7.189 Y3.512 E35.40432
< 19:50:19.433: Resend: G0 F9000 X-7.400 Y3.923 Z1.700
> 19:50:19.433: ok
< 19:50:19.736: Resend: G1 F1740 X-7.400 Y3.373 E35.43633
< 19:50:19.736: Resend: M105
> 19:50:19.737: ok
< 19:50:19.737: Resend: G1 X-3.428 Y3.373 E35.66753
> 19:50:19.740: Error:Line Number is not Last Line Number+1, Last Line: 12
> 19:50:19.740: Resend: 13
< 19:50:19.741: Resend: G1 X-3.097 Y2.707 E35.71081
> 19:50:19.741: ok
> 19:50:19.745: Error:Line Number is not Last Line Number+1, Last Line: 12
> 19:50:19.745: Resend: 13
< 19:50:19.746: Resend: G1 X-3.654 Y1.972 E35.76449
< 19:50:19.746: Resend: M105
> 19:50:19.746: ok
< 19:50:19.746: Resend: G1 X-3.920 Y1.519 E35.79507
> 19:50:19.749: Error:No Line Number with checksum, Last Line: 12
> 19:50:19.757: Error:Line Number is not Last Line Number+1, Last Line: 12

This line-reset happens a few more times.

Repetier

We have found the problem and fixed it in 0.70.1. At least we could not produce it any more after the fix. So please upgrade and it should work now.

Techy

Thank you. I updated and it works fine again.

sforeman

So, the change from 0.70 to 0.70.1 resulted in "At least we could not produce it any more" ... I'm the square peg as I just hit this problem with 0.70.1

To be a bit more specific, I've installed 0.70.1 on a BeagleBone Black. It is connected to a KosselXL running Marlin 1.0.0 (?)

I had a few successful runs which I stopped before they finished because of bed adhesion issues.

After that, I was never able to get it to work. It would heat the bed, then the extruder, then "home", then auto-level / z-probe. Then it would send the first (1 to 3) real commands and barf.

This is the console output immediate after the bed leveling messages:

15:08:37.-501: N850 M105
15:08:37.-499: N851 G92 E0
15:08:38.-751: N852 M105
15:08:38.-749: N853 M106
15:08:38.-737: echo:Active Extruder: 0
15:08:38.-736: N854 G1 X28.5 Y4.07 Z2.25 E0 F30000
15:08:38.-729: N855 G1 X28.5 Y4.07 Z0.25 E0 F600
15:08:38.-727: Error:No Line Number with checksum, Last Line: 851
15:08:38.-725: Error:Line Number is not Last Line Number+1, Last Line: 851
15:08:38.-718: Resend: N852 M105
15:08:38.-717: Resend: N853 M106
15:08:38.-717: Resend: 852
15:08:38.-716: Resend: N854 G1 X28.5 Y4.07 Z2.25 E0 F30000
15:08:38.-715: Resend: N855 G1 X28.5 Y4.07 Z0.25 E0 F600
15:08:38.-714: N856 G1 E1.5 F1200
15:08:38.-713: echo:Unknown command: "127"
15:08:38.-711: Error:Line Number is not Last Line Number+1, Last Line: 851

I can run the exact same gcode file with repetier-host without any problems.

Repetier

How does it continue? Looks like server send N852 M105 and got "127".

Does it always happen on first error?

maddavo

I am also experiencing this problem intermittantly on 0.70.1 on RasPi. It worked fine before on 0.70.1 but recent prints have intermittant pausing - on further investigation I am getting communications errors.

8:23:48.380: N44721 G1 X103.983 Y151.789 E0.6145

8:23:48.380: ok

8:23:48.392: N44722 G1 X104.224 Y148.083 E0.7257

8:23:48.393: ok

8:23:48.393: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.497: Resend: N44719 G1 X103.789 Y156.461 E0.4746

8:23:48.498: Resend: 44719

8:23:48.498: Resend: N44720 G1 X103.873 Y154.008 E0.5480

8:23:48.499: ok

8:23:48.506: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.507: Resend: 44719

8:23:48.510: Resend: N44721 G1 X103.983 Y151.789 E0.6145

8:23:48.511: ok

8:23:48.511: Error:No Line Number with checksum, Last Line: 44718

8:23:48.518: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.519: Resend: 44719

8:23:48.519: Resend: N44722 G1 X104.224 Y148.083 E0.7257

8:23:48.519: ok

8:23:48.526: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.526: Resend: 44719

8:23:48.530: N44723 G1 X104.545 Y144.122 E0.8447

8:23:48.530: ok

8:23:48.539: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.540: Resend: 44719

8:23:48.540: N44724 G1 X104.911 Y140.246 E0.9612

8:23:48.541: ok

8:23:48.551: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.552: Resend: 44719

8:23:48.552: N44725 G1 X105.296 Y136.587 E1.0713

8:23:48.553: ok

8:23:48.563: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.563: Resend: 44719

8:23:48.564: N44726 G1 X105.742 Y132.697 E1.1886

8:23:48.564: ok

8:23:48.572: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.573: Resend: 44719

8:23:48.573: N44727 G1 X106.192 Y129.033 E1.2991

8:23:48.574: ok

8:23:48.703: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.706: Resend: 44719

8:23:48.707: N44728 G1 X106.704 Y125.132 E1.4168

8:23:48.707: ok

8:23:48.715: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.716: Resend: 44719

8:23:48.716: N44729 G1 X107.145 Y121.940 E1.5133

8:23:48.717: ok

8:23:48.727: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.728: Resend: 44719

8:23:48.728: N44730 G1 X107.521 Y119.268 E1.5941

8:23:48.729: ok

8:23:48.735: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.739: Resend: 44719

8:23:48.740: N44731 G1 X122.473 Y119.268 E2.0416

8:23:48.740: ok

8:23:48.748: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.749: Resend: 44719

8:23:48.749: N44732 G1 X122.851 Y121.911 E2.1216

8:23:48.750: ok

8:23:48.760: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.760: Resend: 44719

8:23:48.761: N44733 G1 X123.608 Y127.485 E2.2899

8:23:48.762: ok

8:23:48.768: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.772: Resend: 44719

8:23:48.773: N44734 G1 X124.401 Y133.910 E2.4837

8:23:48.773: ok

8:23:48.781: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.781: Resend: 44719

8:23:48.782: N44735 G1 X124.636 Y135.970 E2.5458

8:23:48.782: ok

8:23:48.793: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.793: Resend: 44719

8:23:48.794: N44736 G1 X125.096 Y140.319 E2.6767

8:23:48.794: ok

8:23:48.801: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.805: Resend: 44719

8:23:48.805: N44737 G1 X125.526 Y144.940 E2.8156

8:23:48.806: ok

8:23:48.814: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.815: Resend: 44719

8:23:48.815: N44738 G1 X125.715 Y147.273 E2.8857

8:23:48.816: ok

8:23:48.825: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.826: Resend: 44719

8:23:48.826: N44739 G1 X125.898 Y149.852 E2.9631

8:23:48.827: ok

8:23:48.833: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.837: Resend: 44719

8:23:48.838: N44740 G1 X126.103 Y153.472 E3.0716

8:23:48.838: ok

8:23:48.847: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.847: Resend: 44719

8:23:48.847: N44741 G1 X126.200 Y156.032 E3.1483

8:23:48.848: ok

8:23:48.858: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.859: Resend: 44719

8:23:48.859: N44742 G1 X126.248 Y158.540 E3.2234

8:23:48.860: ok

8:23:48.870: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.871: Resend: 44719

8:23:48.871: N44743 G1 X126.241 Y160.943 E3.2953

8:23:48.872: ok

8:23:48.879: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.883: Resend: 44719

8:23:48.884: N44744 G1 X126.167 Y163.398 E3.3688

8:23:48.884: ok

8:23:48.895: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.895: Resend: 44719

8:23:48.896: N44745 G1 X126.101 Y164.585 E3.4044

8:23:48.896: ok

8:23:48.904: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.907: Resend: 44719

8:23:48.907: N44746 G1 X126.011 Y165.773 E3.4401

8:23:48.908: ok

8:23:48.916: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.916: Resend: 44719

8:23:48.917: N44747 G1 X125.896 Y166.948 E3.4754

8:23:48.918: ok

8:23:48.928: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.928: Resend: 44719

8:23:48.929: N44748 G1 X125.667 Y168.708 E3.5286

8:23:48.929: ok

8:23:48.937: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.940: Resend: 44719

8:23:48.940: N44749 G1 X125.471 Y169.858 E3.5635

8:23:48.941: ok

8:23:48.949: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.949: Resend: 44719

8:23:48.950: N44750 G1 X125.215 Y171.083 E3.6009

8:23:48.950: ok

8:23:48.956: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.960: Resend: 44719

8:23:48.961: N44751 G1 X125.080 Y171.637 E3.6180

8:23:48.961: ok

8:23:48.970: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.970: Resend: 44719

8:23:48.971: N44752 G1 X124.839 Y172.509 E3.6451

8:23:48.972: ok

8:23:48.981: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.982: Resend: 44719

8:23:48.982: N44753 G1 X124.561 Y173.372 E3.6722

8:23:48.983: ok

8:23:48.989: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:48.993: Resend: 44719

8:23:48.994: N44754 G1 X124.413 Y173.781 E3.6852

8:23:48.995: ok

8:23:49.002: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.005: Resend: 44719

8:23:49.006: N44755 G1 X124.070 Y174.622 E3.7124

8:23:49.006: ok

8:23:49.014: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.015: Resend: 44719

8:23:49.015: N44756 G1 X123.674 Y175.451 E3.7399

8:23:49.015: ok

8:23:49.022: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.026: Resend: 44719

8:23:49.026: N44757 G1 X123.467 Y175.831 E3.7529

8:23:49.027: ok

8:23:49.036: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.036: Resend: 44719

8:23:49.038: N44758 G1 X122.978 Y176.621 E3.7807

8:23:49.038: ok

8:23:49.047: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.048: Resend: 44719

8:23:49.051: N44759 G1 X122.688 Y177.029 E3.7957

8:23:49.052: ok

8:23:49.059: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.059: Resend: 44719

8:23:49.060: N44760 G1 X122.411 Y177.382 E3.8091

8:23:49.060: ok

8:23:49.068: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.071: Resend: 44719

8:23:49.071: N44761 G1 X122.117 Y177.722 E3.8226

8:23:49.072: ok

8:23:49.080: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.080: Resend: 44719

8:23:49.081: N44762 G1 X121.770 Y178.083 E3.8375

8:23:49.082: ok

8:23:49.092: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.092: Resend: 44719

8:23:49.093: N44763 G1 X121.231 Y178.570 E3.8593

8:23:49.093: ok

8:23:49.101: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.104: Resend: 44719

8:23:49.104: N44764 G1 X120.880 Y178.848 E3.8727

8:23:49.105: ok

8:23:49.113: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.113: Resend: 44719

8:23:49.113: N44765 G1 X120.467 Y179.137 E3.8878

8:23:49.114: ok

8:23:49.120: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.124: Resend: 44719

8:23:49.125: N44766 G1 X119.845 Y179.510 E3.9095

8:23:49.125: ok

8:23:49.132: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.133: Resend: 44719

8:23:49.134: N44767 G1 X119.452 Y179.711 E3.9227

8:23:49.134: ok

8:23:49.141: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.144: Resend: 44719

8:23:49.145: N44768 G1 X119.037 Y179.896 E3.9363

8:23:49.145: ok

8:23:49.154: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.154: Resend: 44719

8:23:49.154: N44769 G1 X118.560 Y180.081 E3.9516

8:23:49.155: ok

8:23:49.161: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.165: Resend: 44719

8:23:49.166: N44770 G1 X118.131 Y180.223 E3.9652

8:23:49.166: ok

8:23:49.173: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.174: Resend: 44719

8:23:49.174: N44771 G1 X117.695 Y180.346 E3.9787

8:23:49.175: ok

8:23:49.182: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.186: Resend: 44719

8:23:49.187: N44772 G1 X117.256 Y180.450 E3.9922

8:23:49.187: ok

8:23:49.194: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.198: Resend: 44719

8:23:49.199: N44773 G1 X116.750 Y180.548 E4.0077

8:23:49.200: ok

8:23:49.207: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.210: Resend: 44719

8:23:49.211: N44774 G1 X116.304 Y180.617 E4.0212

8:23:49.211: ok

8:23:49.219: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.220: Resend: 44719

8:23:49.220: N44775 G1 X115.863 Y180.668 E4.0345

8:23:49.220: ok

8:23:49.227: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.231: Resend: 44719

8:23:49.231: N44776 G1 X115.003 Y180.728 E4.0603

8:23:49.232: ok

8:23:49.239: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.243: Resend: 44719

8:23:49.243: N44777 G1 X113.979 Y180.651 E4.0910

8:23:49.244: ok

8:23:49.252: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.252: Resend: 44719

8:23:49.253: N44778 G1 X113.336 Y180.563 E4.1104

8:23:49.253: ok

8:23:49.260: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.264: Resend: 44719

8:23:49.264: N44779 G1 X112.996 Y180.502 E4.1208

8:23:49.265: ok

8:23:49.272: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.272: Resend: 44719

8:23:49.273: N44780 G1 X112.656 Y180.431 E4.1312

8:23:49.274: ok

8:23:49.284: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.285: Resend: 44719

8:23:49.286: N44781 G1 X111.988 Y180.258 E4.1518

8:23:49.286: ok

8:23:49.293: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.297: Resend: 44719

8:23:49.297: N44782 G1 X111.366 Y180.054 E4.1714

8:23:49.298: ok

8:23:49.305: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.305: Resend: 44719

8:23:49.309: N44783 G1 X110.813 Y179.832 E4.1893

8:23:49.309: ok

8:23:49.318: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.318: Resend: 44719

8:23:49.319: N44784 G1 X110.209 Y179.539 E4.2093

8:23:49.319: ok

8:23:49.330: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.330: Resend: 44719

8:23:49.331: N44785 G1 X109.934 Y179.387 E4.2188

8:23:49.331: ok

8:23:49.337: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.341: Resend: 44719

8:23:49.342: N44786 G1 X109.650 Y179.214 E4.2287

8:23:49.343: ok

8:23:49.350: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.351: Resend: 44719

8:23:49.351: N44787 G1 X109.080 Y178.819 E4.2495

8:23:49.352: ok

8:23:49.358: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.362: Resend: 44719

8:23:49.363: N44788 G1 X108.834 Y178.626 E4.2588

8:23:49.363: ok

8:23:49.371: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.372: Resend: 44719

8:23:49.373: N44789 G1 X108.312 Y178.164 E4.2797

8:23:49.373: ok

8:23:49.383: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.383: Resend: 44719

8:23:49.384: N44790 M105

8:23:49.384: ok

8:23:49.384: N44791 G1 X108.091 Y177.945 E4.2890

8:23:49.391: Error:Line Number is not Last Line Number+1, Last Line: 44718

8:23:49.391: Resend: 44719

8:23:49.392: ok

this is just a snippet - you will probably want more log I imagine. I have recently started playing with the timelapse function and inserting M400 ; M105 ; ... between each layer - I don't know if this has anything to do with it.