Prusaslicer 2.9.4 Copied MK3S Profile Failing Filament Check Single Extruder Multi Material (SEMM)  

Prusaslicer 2.9.4 Copied MK3S Profile Failing Filament Check Single Extruder Multi Material (SEMM)

My order of operations is as such:

1. Select an existing MK3S profile
2. In 'capabilities' add one extruder for a total of two.
3. Select 'single extruder multi material' --> This is when my filament becomes incompatible

I am attempting to use a PETG support interface layer on a PLA print, or PETG on ASA with an M600 filament change. 

I'm not sure wtf I'm doing wrong. I did the exact same steps (along with M600 in custom gcode for tool change) and it works fine on my MK3.9. 

My MK3S has all relevant filaments enabled via the configuration manager and enabling 'Show incompatible print and filament presets' did NOT fix the issue. 

These filaments have the ! 'single_extruder_multi_material' for some reason, does that exclude them? I'm not sure why they would be excluded like that if they work fine on the MK3.9