Stopping MMU single prints tries to unload filament twice
When starting a print with a single color on the MMU version of the MK3 and then canceling it either via the web interface or the LCD on the printer itself will try to unload the filament twice.
After the print was cancelled, the printer will unload the filament, set the nozzle and bed temperatures to 0, move the print bed forward and move the extruder to the left side like usual. After a few seconds however it tries to again unload the filament, fails doing so because it detects that no filament is loaded and then shows the MMU filament load error message which prompts to press the button to load the filament again. If the button is clicked, it attempts to load the filament into a nozzle that is already cooling off (mine was already at around 160 °C)
PrusaLink type: Raspberry Pi Zero 2W
PrusaLink version: 0.6.0
Printer type: MK3S+ MMU2S
Printer UUID: 0fb428c8-527c-4e8b-bf85-54d4d0c430bd
Printer firmware version: 3.10.1
RE:
Can confirm that problem with cancelling MMU print jobs. It happens multiple times and is reproducable.
PrusaLink type: Raspberry Pi 3
PrusaLink version: 0.6.0
Printer type: MK3S+ MMU2S
Printer firmware version: 3.10.1
RE:
Hi, I did not own the MMU at the time. I know M603 gets sent two times. Had no idea it unloads the filament on the MMU, which breaks stuff this hard. I have the MMU working since last weekend, so this should be easier to fix now. Thanks for letting me know