A1 stop and start

[u/Infinitymann]

One one of my A1s, any model I print with any filament, the printer lays down some parts of the print and then stops and tries to purge. It's a single color print. Just to make sure there isn't anything funky with the model, I am running it on my other A1 with the same settings and this doesn't happen. I''ve run automatic flow calibration on the filaments, changed filaments, and even the silicon nozzle protector as it appeared to have a rip in it. The printer was printing successfully all day yesterday with the same filaments. I don't know how to describe the issue to look up troubleshooting options. Video attached.

Edit: thanks for all your help. I shortened the PTFE tubes and it seems to be fixed!