My printer does mysterious motions with no obviously reproducable reason. As you may see in the scans with rised contrast to visible the motions (first layer; last layer), there are some pathes across the regular pathes as they came from the gcode.
The gcode was created in Prusa Slicr 2.5 (download)
fist layer: missing pathes and one all across the board
last layer: infill - irregular pathes. Sometimes moving in Z while printing. Further unexpected moves of the feader (leaving spots) which finally led to a nozzle failure as the filament was retracted too much.
Any idea if that issue is located on the printer controller itself or could it be a problem in the collaboration with the server?
How may I debug the issue? Where are the logs, if any?
Thank you in advance.