Hi there,
I have two questions:
Printer: Voron2.4 with klipper and repetier server 1.4.15
1. Where comes this message from and what does it mean:

Send:12:47:48.241: EXCLUDE_OBJECT_END NAME=MyNixieClock2_NixieColonTubeHolderMini_id_0_copy_0
Recv:12:47:48.241: // Unknown command:"EXCLUDE_OBJECT_END"
Send:12:47:48.242: EXCLUDE_OBJECT_START NAME=MyNixieClock2_NixieColonTubeHolderMini_id_0_copy_1
Recv:12:47:48.242: // Unknown command:"EXCLUDE_OBJECT_START"

I see it often in my logs. I dont think that it has any influence onto the print but what does it mean?

2. The log shows me some communication errors, but only in one situation:

Log shows communication error only during the quad gantry leveling procedure. Quad gantry leveling is a klipper macro for bed calibration. If you look to the logs excerp below you see that the error appears only just before RS wants to send a M117 command. The quad gantry leveling is a long term command. I think during the execution of the macro the communication has some kind of blocking. Do you have any ideas?

Mesg:12:38:49.659: Warning: Communication timeout - resetting communication buffer.
Mesg:12:38:49.659: This means that a expected firmware response was not seen within the expected time.
Mesg:12:38:49.659: The typical reason is a communication error and print should continue after the communication reset.
Mesg:12:38:49.659: Connection status: Buffered:43, Manual Commands: 1, Job Commands: 5000
Mesg:12:38:49.659: Buffer used:43 Enforced free byte:0 lines stored:1
Send:12:38:49.659: N402450 M117 ETA 12:54:53 day 4

******************************* Auszug aus meinem LOG *****************************************************

Mesg:12:38:18.624: Command exceeds printers input buffer size, not send:EXCLUDE_OBJECT_DEFINE NAME=MyNixieClock2_NixieColonHalterCarrierSequins02_id_1_copy_0 CENTER=138.704750,157.105642 POLYGON=[[133.50,157.11],[133.53,156.64],[133.59,156.18],[133.69,155.72],[133.84,155.28],[134.02,154.85],[134.24,154.44],[134.50,154.05],[134.79,153.68],[135.11,153.35],[135.46,153.04],[135.84,152.77],[136.24,152.53],[136.66,152.32],[137.10,152.16],[137.55,152.04],[138.01,151.95],[138.47,151.91],[138.94,151.91],[139.40,151.95],[139.86,152.04],[140.31,152.16],[140.75,152.32],[141.17,152.53],[141.57,152.77],[141.95,153.04],[142.30,153.35],[142.62,153.68],[142.91,154.05],[143.17,154.44],[143.39,154.85],[143.57,155.28],[143.72,155.72],[143.82,156.18],[143.88,156.64],[143.90,157.11],[143.88,157.57],[143.82,158.03],[143.72,158.49],[143.57,158.93],[143.39,159.36],[143.17,159.77],[142.91,160.16],[142.62,160.53],[142.30,160.86],[141.95,161.17],[141.57,161.45],[141.17,161.68],[140.75,161.89],[140.31,162.05],[139.86,162.18],[139.40,162.26],[138.94,162.30],[138.47,162.30],[138.01,162.26],[137.55,162.18],[137.10,162.05],[136.66,161.89],[136.24,161.68],[135.84,161.45],[135.46,161.17],[135.11,160.86],[134.79,160.53],[134.50,160.16],[134.24,159.77],[134.02,159.36],[133.84,158.93],[133.69,158.49],[133.59,158.03],[133.53,157.57],[133.50,157.11]]
Mesg:12:38:18.635: Command exceeds printers input buffer size, not send:EXCLUDE_OBJECT_DEFINE NAME=MyNixieClock2_NixieColonHalterCarrierSequins02_id_1_copy_1 CENTER=138.451387,141.716122 POLYGON=[[133.25,141.72],[133.27,141.25],[133.33,140.79],[133.44,140.33],[133.58,139.89],[133.77,139.46],[133.99,139.05],[134.24,138.66],[134.54,138.29],[134.86,137.96],[135.21,137.65],[135.59,137.38],[135.99,137.14],[136.41,136.93],[136.84,136.77],[137.29,136.65],[137.75,136.56],[138.22,136.52],[138.68,136.52],[139.15,136.56],[139.61,136.65],[140.06,136.77],[140.50,136.93],[140.92,137.14],[141.32,137.38],[141.69,137.65],[142.04,137.96],[142.37,138.29],[142.66,138.66],[142.92,139.05],[143.14,139.46],[143.32,139.89],[143.46,140.33],[143.57,140.79],[143.63,141.25],[143.65,141.72],[143.63,142.18],[143.57,142.64],[143.46,143.10],[143.32,143.54],[143.14,143.97],[142.92,144.38],[142.66,144.77],[142.37,145.14],[142.04,145.47],[141.69,145.78],[141.32,146.06],[140.92,146.30],[140.50,146.50],[140.06,146.66],[139.61,146.79],[139.15,146.87],[138.68,146.91],[138.22,146.91],[137.75,146.87],[137.29,146.79],[136.84,146.66],[136.41,146.50],[135.99,146.30],[135.59,146.06],[135.21,145.78],[134.86,145.47],[134.54,145.14],[134.24,144.77],[133.99,144.38],[133.77,143.97],[133.58,143.54],[133.44,143.10],[133.33,142.64],[133.27,142.18],[133.25,141.72]]
Send:12:38:18.646: N402447 M107
Recv:12:38:18.647: ok (N402447)
Send:12:38:18.647: N402448 M104 S240
Recv:12:38:18.648: ok (N402448)
Send:12:38:18.649: N402449 M140 S100
Recv:12:38:18.649: ok (N402449)
Send:12:38:18.650: PRINT_START EXTRUDER_TEMP=240 BED_TEMP=100
Recv:12:38:18.669: B:98.1 /100.0 C-Top:32.2 /0.0 T0:239.9 /240.0
Recv:12:38:19.666: B:98.2 /100.0 C-Top:32.2 /0.0 T0:239.9 /240.0
Recv:12:38:20.667: B:98.3 /100.0 C-Top:32.2 /0.0 T0:240.0 /240.0
Recv:12:38:21.668: B:98.4 /100.0 C-Top:32.2 /0.0 T0:240.0 /240.0
Recv:12:38:22.669: B:98.4 /100.0 C-Top:32.2 /0.0 T0:240.1 /240.0
Recv:12:38:23.669: B:98.5 /100.0 C-Top:32.2 /0.0 T0:240.2 /240.0
Recv:12:38:24.670: B:98.6 /100.0 C-Top:32.2 /0.0 T0:240.2 /240.0
Recv:12:38:25.671: B:98.7 /100.0 C-Top:32.2 /0.0 T0:240.2 /240.0
Recv:12:38:26.672: B:98.8 /100.0 C-Top:32.2 /0.0 T0:240.2 /240.0
Recv:12:38:27.673: B:98.9 /100.0 C-Top:32.2 /0.0 T0:240.2 /240.0
Recv:12:38:28.674: B:99.0 /100.0 C-Top:32.2 /0.0 T0:240.1 /240.0
Mesg:12:38:49.659: Warning: Communication timeout - resetting communication buffer.
Mesg:12:38:49.659: This means that a expected firmware response was not seen within the expected time.
Mesg:12:38:49.659: The typical reason is a communication error and print should continue after the communication reset.
Mesg:12:38:49.659: Connection status: Buffered:43, Manual Commands: 1, Job Commands: 5000
Mesg:12:38:49.659: Buffer used:43 Enforced free byte:0 lines stored:1
Send:12:38:49.659: N402450 M117 ETA 12:54:53 day 4
Recv:12:38:56.093: // probe at 50.000,25.000 is z=3.822500
Recv:12:38:57.091: // probe at 50.000,25.000 is z=3.815000
Recv:12:38:57.093: // Probe samples exceed tolerance. Retrying...
Recv:12:38:58.093: // probe at 50.000,25.000 is z=3.812500
Recv:12:38:59.092: // probe at 50.000,25.000 is z=3.812500
Recv:12:39:00.089: // probe at 50.000,25.000 is z=3.812500
Recv:12:39:03.803: // probe at 50.000,225.000 is z=4.812500
Recv:12:39:04.804: // probe at 50.000,225.000 is z=4.802500
Recv:12:39:04.806: // Probe samples exceed tolerance. Retrying...
Recv:12:39:05.800: // probe at 50.000,225.000 is z=4.800000
Recv:12:39:06.805: // probe at 50.000,225.000 is z=4.800000
Recv:12:39:07.800: // probe at 50.000,225.000 is z=4.800000
Recv:12:39:11.368: // probe at 250.000,225.000 is z=5.075000
Recv:12:39:12.368: // probe at 250.000,225.000 is z=5.067500
Recv:12:39:12.370: // Probe samples exceed tolerance. Retrying...
Recv:12:39:13.365: // probe at 250.000,225.000 is z=5.062500
Recv:12:39:14.357: // probe at 250.000,225.000 is z=5.065000
Recv:12:39:15.348: // probe at 250.000,225.000 is z=5.065000
Recv:12:39:19.021: // probe at 250.000,25.000 is z=3.897500
Recv:12:39:20.029: // probe at 250.000,25.000 is z=3.887500
Recv:12:39:20.031: // Probe samples exceed tolerance. Retrying...
Mesg:12:39:20.668: Warning: Communication timeout - resetting communication buffer.
Mesg:12:39:20.668: This means that a expected firmware response was not seen within the expected time.
Mesg:12:39:20.668: The typical reason is a communication error and print should continue after the communication reset.
Mesg:12:39:20.668: Connection status: Buffered:32, Manual Commands: 1, Job Commands: 5000
Mesg:12:39:20.668: Buffer used:32 Enforced free byte:0 lines stored:1
Send:12:39:20.668: N402451 M117 ETE 00:16:31
Recv:12:39:21.039: // probe at 250.000,25.000 is z=3.885000
Recv:12:39:22.041: // probe at 250.000,25.000 is z=3.885000
Recv:12:39:23.046: // probe at 250.000,25.000 is z=3.900000
Recv:12:39:23.047: // Probe samples exceed tolerance. Retrying...
Recv:12:39:24.055: // probe at 250.000,25.000 is z=3.890000
Recv:12:39:25.056: // probe at 250.000,25.000 is z=3.890000
Recv:12:39:26.056: // probe at 250.000,25.000 is z=3.890000
Recv:12:39:26.060: // Gantry-relative probe points:
Recv:12:39:26.060: // 0: 4.187500 1: 3.200000 2: 2.935000 3: 4.110000
Recv:12:39:26.061: // Actuator Positions:
Recv:12:39:26.061: // z: 4.495437 z1: 2.815125 z2: 2.022375 z3: 4.450813
Recv:12:39:26.065: // Average: 3.445938
Recv:12:39:26.065: // Making the following Z adjustments:
Recv:12:39:26.065: // stepper_z = -1.049500
Recv:12:39:26.065: // stepper_z1 = 0.630813
Recv:12:39:26.065: // stepper_z2 = 1.423563
Recv:12:39:26.065: // stepper_z3 = -1.004875
Recv:12:39:26.069: // Retries: 0/6 Probed points range: 1.252500 tolerance: 0.007500
Recv:12:39:30.370: // probe at 50.000,25.000 is z=4.607000
Recv:12:39:31.367: // probe at 50.000,25.000 is z=4.599500
Recv:12:39:31.372: // Probe samples exceed tolerance. Retrying...
Recv:12:39:32.365: // probe at 50.000,25.000 is z=4.602000
Recv:12:39:33.362: // probe at 50.000,25.000 is z=4.599500
Recv:12:39:34.353: // probe at 50.000,25.000 is z=4.599500
Recv:12:39:37.991: // probe at 50.000,225.000 is z=4.614500
Recv:12:39:38.988: // probe at 50.000,225.000 is z=4.607000
Recv:12:39:38.990: // Probe samples exceed tolerance. Retrying...
Recv:12:39:39.986: // probe at 50.000,225.000 is z=4.604500
Recv:12:39:40.982: // probe at 50.000,225.000 is z=4.604500
Recv:12:39:41.979: // probe at 50.000,225.000 is z=4.602000
Recv:12:39:45.612: // probe at 250.000,225.000 is z=4.642000
Recv:12:39:46.605: // probe at 250.000,225.000 is z=4.634500
Recv:12:39:46.606: // Probe samples exceed tolerance. Retrying...
Recv:12:39:47.603: // probe at 250.000,225.000 is z=4.632000
Recv:12:39:48.599: // probe at 250.000,225.000 is z=4.629500
Recv:12:39:49.592: // probe at 250.000,225.000 is z=4.629500
Mesg:12:39:51.674: Warning: Communication timeout - resetting communication buffer.
Mesg:12:39:51.674: This means that a expected firmware response was not seen within the expected time.
Mesg:12:39:51.674: The typical reason is a communication error and print should continue after the communication reset.
Mesg:12:39:51.674: Connection status: Buffered:26, Manual Commands: 1, Job Commands: 5000
Mesg:12:39:51.674: Buffer used:26 Enforced free byte:0 lines stored:1
Send:12:39:51.674: N402452 M117 Layer 0/80
Recv:12:39:53.229: // probe at 250.000,25.000 is z=4.584500
Recv:12:39:54.224: // probe at 250.000,25.000 is z=4.574500
Recv:12:39:54.225: // Probe samples exceed tolerance. Retrying...
Recv:12:39:55.227: // probe at 250.000,25.000 is z=4.572000
Recv:12:39:56.224: // probe at 250.000,25.000 is z=4.572000
Recv:12:39:57.233: // probe at 250.000,25.000 is z=4.572000
Recv:12:39:57.236: // Gantry-relative probe points:
Recv:12:39:57.236: // 0: 3.400500 1: 3.395500 2: 3.370500 3: 3.428000
Recv:12:39:57.237: // Actuator Positions:
Recv:12:39:57.237: // z: 3.378213 z1: 3.423575 z2: 3.304925 z3: 3.469038
Recv:12:39:57.238: // Average: 3.393938
Recv:12:39:57.239: // Making the following Z adjustments:
Recv:12:39:57.239: // stepper_z = 0.015725
Recv:12:39:57.239: // stepper_z1 = -0.029638
Recv:12:39:57.239: // stepper_z2 = 0.089013
Recv:12:39:57.239: // stepper_z3 = -0.075100
Recv:12:39:57.241: // Retries: 1/6 Probed points range: 0.057500 tolerance: 0.007500
Recv:12:40:01.146: // probe at 50.000,25.000 is z=4.625100
Recv:12:40:02.155: // probe at 50.000,25.000 is z=4.617600
Recv:12:40:02.157: // Probe samples exceed tolerance. Retrying...
Recv:12:40:03.154: // probe at 50.000,25.000 is z=4.615100
Recv:12:40:04.161: // probe at 50.000,25.000 is z=4.615100
Recv:12:40:05.162: // probe at 50.000,25.000 is z=4.610100
Recv:12:40:08.812: // probe at 50.000,225.000 is z=4.630100
Recv:12:40:09.819: // probe at 50.000,225.000 is z=4.617600
Recv:12:40:09.820: // Probe samples exceed tolerance. Retrying...
Recv:12:40:10.837: // probe at 50.000,225.000 is z=4.615100
Recv:12:40:11.848: // probe at 50.000,225.000 is z=4.615100
Recv:12:40:12.852: // probe at 50.000,225.000 is z=4.617600
Recv:12:40:16.488: // probe at 250.000,225.000 is z=4.635100
Recv:12:40:17.485: // probe at 250.000,225.000 is z=4.625100
Recv:12:40:17.487: // Probe samples exceed tolerance. Retrying...
Recv:12:40:18.486: // probe at 250.000,225.000 is z=4.620100
Recv:12:40:19.481: // probe at 250.000,225.000 is z=4.617600
Recv:12:40:20.477: // probe at 250.000,225.000 is z=4.615100
Mesg:12:40:22.681: Warning: Communication timeout - resetting communication buffer.
Mesg:12:40:22.681: This means that a expected firmware response was not seen within the expected time.
Mesg:12:40:22.681: The typical reason is a communication error and print should continue after the communication reset.
Mesg:12:40:22.681: Connection status: Buffered:24, Manual Commands: 1, Job Commands: 5000
Mesg:12:40:22.681: Buffer used:24 Enforced free byte:0 lines stored:1
Send:12:40:22.681: N402453 M117 ETA 12:56:23 day 4
Recv:12:40:24.115: // probe at 250.000,25.000 is z=4.622600
Recv:12:40:25.114: // probe at 250.000,25.000 is z=4.615100
Recv:12:40:25.116: // Probe samples exceed tolerance. Retrying...
Recv:12:40:26.112: // probe at 250.000,25.000 is z=4.615100
Recv:12:40:27.109: // probe at 250.000,25.000 is z=4.615100
Recv:12:40:28.105: // probe at 250.000,25.000 is z=4.612600
Recv:12:40:28.109: // Gantry-relative probe points:
Recv:12:40:28.109: // 0: 3.384900 1: 3.384900 2: 3.382400 3: 3.384900
Recv:12:40:28.110: // Actuator Positions:
Recv:12:40:28.111: // z: 3.384487 z1: 3.387100 z2: 3.378700 z3: 3.386063
Recv:12:40:28.112: // Average: 3.384087
Recv:12:40:28.113: // Making the following Z adjustments:
Recv:12:40:28.113: // stepper_z = -0.000400
Recv:12:40:28.113: // stepper_z1 = -0.003012
Recv:12:40:28.113: // stepper_z2 = 0.005387
Recv:12:40:28.113: // stepper_z3 = -0.001975
Recv:12:40:28.117: // Retries: 2/6 Probed points range: 0.002500 tolerance: 0.007500
Mesg:12:40:53.688: Warning: Communication timeout - resetting communication buffer.
Mesg:12:40:53.688: This means that a expected firmware response was not seen within the expected time.
Mesg:12:40:53.688: The typical reason is a communication error and print should continue after the communication reset.
Mesg:12:40:53.688: Connection status: Buffered:32, Manual Commands: 1, Job Commands: 5000
Mesg:12:40:53.688: Buffer used:32 Enforced free byte:0 lines stored:1
Send:12:40:53.689: N402454 M117 ETE 00:16:31
Recv:12:41:03.163: ok (N402454)
Send:12:41:03.164: N402455 M117 Layer 0/80
Recv:12:41:03.165: ok (N402455)
Send:12:41:03.165: N402456 G21 ; set units to millimeters
Recv:12:41:03.166: ok (N402456)
Send:12:41:03.166: N402457 G90 ; use absolute coordinates
Recv:12:41:03.167: ok (N402457)
Send:12:41:03.168: N402458 M83 ; use relative distances for extrusion
Recv:12:41:03.169: ok (N402458)
Send:12:41:03.169: N402459 G1 Z0.26 F27000
Recv:12:41:03.170: ok (N402459)
Send:12:41:03.171: N402460 G92 E0


*******************************   Auszug aus meinem LOG Ende *****************************************************