Not sure it's a bug or what but ..... ever since uploading the new firmware for the printer and MMU this machine has been a dog!
Starting prints the filament acts more like a yo-ho. Its fed in then fed out with all sorts of FINDA and other stuck filament errors. I can pull the filament so its not stuck and I now have to guide/push the filament into the extruder to get it to "take".
Stripped the MMU and rebuilt it, stripped the extruder and rebuilt it, Still getting issues.
Its worked not to bad since 2020, odd MMU slipping issues but never an issue with feeding into the extruder once there. Now? New firmware? Useless.