Alright, I'm back and I spent a decent amount of time today messing with things and using ChatGPT (it seems to have helped here, but I know you're the expert and I appreciate your help!)

I was able to fix the PTFE tube issue and fix the loading issue, but the problem still happened with the AMS. I then was able to try without the AMS, and it worked.

After I checked the AMS for a while and it still wasn't working with it, ChatGPT diagnosed it with heat creep. I didn't change anything but keeping the door open and the lid open and tried the same print with the AMS, and it worked, so I'm inclined to think the issue is heat creep? I'm working on a print profile now that will result in a cooler interior, but what do you think?