Power Panic on XL 2-tool machine did not work to save the print during power interruptions
I was printing a 2-color print over night with the XL 2-toolhead machine. The power turned off and on a few times. When the power came back on after ~5 mintues, I checked the printer. It said that the heat bed had cooled and had a message to check the print to make sure it was not lifting off the bed. The prints were not lifting (these particular parts had large surface contact area) so I confirmed and it rehomed X,Y and heated up the nozzle. When the 2 nozzles got to temperature (230C for PETG), it began printing where it left off. However, the Z-height was too high by about a few millimeters. I Paused the print, and the print head moved to the back left corner. I tried going into the Tune menu to see if I could manually adjust and reset the Z axis, but there were not settings for Z in the Tune menu. I tried Resuming the print again, but again, it was a few millimeters too high and made a mess. I wound up canceling the print...
There seems to be something wrong with the Z height calculation for the Power Panic feature. I was printed from the USB drive, so it should have been able to resume after the short power outage.
Could it be caused by the power going on and off a few times in a short period of time? If it lost say 0.5-1mm each power cycle, that would explain why it was a few millimeters too high when it tried resuming the print.
Has anyone else experienced problems with Power Panic on the Prusa XL? I'm running the latest stable firmware, v.4.7.5, and sliced with PrusaSlicer v2.6.1. I'm not running any alpha/beta/input-shaping firmware yet.