mkbel
commented
5 years ago I am closing this, as this pull request is wrong. Proposed change has nothing to do with failed filament load. Those retries are for drive error and you should not encounter drive errors - lost power to Trinamic drivers unless you have faulty hardware or wiring. You already fixed this in https://github.com/prusa3d/Prusa-Firmware/commit/6cb85a455f307105ac3e777022510cb277f3443c
Two is too low on long prints and it usually works on the 3rd attempt even if you dont change anything. I have increased it to 4 retries just to be safe.
It not a good experience getting back to a long print just to see the printer waiting for "MMU needs..." when a simple press on a button would have solved it.