Slicing with the latest Orcaslicer (2.4.2 at the time of writing) will result in non-parseable gcode which will get the printer stuck.
To fix the gcode every line containing looking like: ; filament_colour_type = <number> needs to be removed as per https://github.com/OrcaSlicer/OrcaSlicer/issues/12952#issuecomment-4734468087