Do you know of any ways to test/ eliminate heat creep as a cause? I keep seeing it as a possibility but I’ve tried a couple things and I don’t think it’s that. The printer has been running in the same enclosure for ~ one year, but I took it out to make sure it’s getting cool air to the extruder, I’ve tried heating the nozzle to printing temps and leaving the filament in the nozzle for a long time before extruding (trying to purposely replicate heat creep), and I’ve tried simply touching the heat sink after it’s been at temp for a while and it’s still barely warm to the touch.