@5756e48c Oh yeah, the jam was because the filament had curled into a literal hook around a plastic part. Confirms heat creep. Fun.
@5756e48c Sent Qidi after-sales support a long email with photo evidence. At this point, they might as well give me a new toolhead, since the extruder _and_ hotend are clearly faulty. Both in ways I've never seen mind you!