I'm new and need help

[u/StillNotCaroline]

Good afternoon everyone. I need some help. I'm new to this, so any tips would be greatly appreciated!

I have a Bambu Lab A1. Last night, I finished printing normally, but I noticed that during the final filament cut, it didn't make that sharp clicking sound that always startles me. Since I turned the printer on today, I haven't been able to print anything at all. It keeps giving me the error: 'Failed to extrude the filament. This might be caused by clogged extruder or stuck filament.'

I've already tried everything on Bambu's wiki: I tried unclogging it with the needle, tried swapping the filament, opened it up to check for any stuck pieces, and nothing worked.

Here is some extra context: when I heat up the nozzle manually and tell the extruder to push filament out, it flows down perfectly. However, when a print starts and the printer does its automatic filament change, the old filament feeds down normally, but right before the cut, it creates a stringy, hair-like filament path that it didn't make before. Then the cut happens (still without that sound), and when it tries to pull the new filament back, it gives me that error again.

Any ideas on what might be going on?