I’ve been having a lot of issues with the filament saying it can’t or didn’t retract. Usually, it can be resolved by opening the AMS and running the filament through manually. Also, once in a while filament is stuck in the extruder/hotend, this has been resolved by removing the PTFE tube and manually inserting filament and then pushing the extrude button on the home screen, then manually pushing the cutter and pulling the filament, then put it all back together and it resumes as normal.
What I would propose is a button or even an automatic option to ignore the error and push filament through anyways for say 200mm, then cut and attempt to retract again. This should solve the issue of having to manually fix the error.
This is especially a problem for remote printing.