this happens to me 1 out of every 10 rolls or so for a while but now its so frequent i switched to polymaker for filament
A year on from the OP and I’ve been having issues with my standard gray PLA spool (not a refill) jamming part way through long prints. I’m about half way through the reel now and the problem appears that the filament is threaded under the next layer, so locks itself. Pulling the filament out and back through the jam, and then reinserting sorts it out, but it means that the print is stalled for a few hours overnight whilst unattended and there is that tell tale line.
Is there a way to prep to minimise this happening? So far it is only the gray I’ve had an issue with, but at less than 100 print and only two colours used (black and gray) I haven’t a super wide expeience yet.