initial_extruder
If you insert {initial_extruder} in the filename the slicer is producing it starts counting with 0 (zero) for the first extruder. his should be 1 (one) because the mmu3 unit also has the extruder labeled 1 to 5 and not 0 to 4. Used slicer is version 2.9.4.
It is not really a bug but annoying 🤔
RE: initial_extruder
Starting indexes at zero is normal for computers, especially for internal registers.
Also this is a user to user forum, if you actually wanted to report an issue then you need to post on the slicers github projects issue page at https://github.com/prusa3d/PrusaSlicer/issues
RE: initial_extruder
Thank you for your answer. I will go to github.
I am aware that computers count from zero. But my issue is, that this not consistent. In Prusa slicer the extruders are numbered 1 to 5, not 0 to 4. Also on the MMU3 body the numbers printed are also 1 to 5 and not 0 to 4.