I have a mini2 and have noticed I need to always run x axis level routine before printing. I have been working on determining how much it drifts during printing. I ran the autolevel command after a 2.5hr print that was 70mm tall.
The right side probed the washers and readout that they were about 1.5-2mm lower than the left side. So it appears that the x axis gets out of level while printing. If I level the x axis and run the probe routine again then the left and right side are pretty close. So it does not seem to be one side moving slower. Seems like one side sinks during printing.
Wondering if any other mini2 users have seen this? To see the values from when probing the washers i changed the line with G29 to G29 V4 and then watched output in terminal during the procedure.