If you got through a whole spool without any issues I really don't see your extruder going bad in that timeframe, but idkThat's the thing. The first spool worked totally fine, no issues at all. Second spool, immediately having issues. So I thought maybe I'd bought some kind of wrong filament, but it doesn't seem like it's any different than the first spool aside from color(packaged one was white, purchased is black).
When it's still going but not actually printing anything do you hear any clicking, can you see if the extruder gears are still turning and trying to grab filament and push it through? (On my K1 Max I can see the extruder gears from the back side of the print head), maybe either extruder gears giving out and not being able to grab the filament, or your nozzle listing the heat it needs to extruder properlyI haven't noticed anything, it's pretty noisy anyway and I didn't particularly notice any different sounds going on. Sounds the same as it did when printing properly, as far as I recall. I'm at work now so I can't check it.
Yeah definitely ask the reddit boys, I haven't had to do any troubleshooting on my K1 Max yet so anything I've got is pure speculationMan, I really didn't want to do that. I'll see if I can find more info around first, then do that if I can't figure anything else out.
Did you make sure you flip the little switch lock on top of the print head back to lock whenever you changed filament?Yeah, did that. But will try that again tomorrow.
Maybe retract filament via the printer display, pull your filament out snip a new end and rethread the filament into the printer?