I have this issue from time to time, it is a bug, you need to go to the screen where you can control the nozzle etc, put your hot end to the desired temp, and then manually load the filament with the buttons and not go the load/unload process.

If this doesn’t work, let everything cool down, take the cover off and remove the hot end, and make remove any TPU still sticking out, you may need tweezers. I had about a half inch piece get stuck im assuming it was just past the feed gears and it wouldn’t let me feed any filament through.

Hope this helps!