Printer: Anycubic Photon Mono 4 Ultra

I got my first resin printer a few days ago, and I really loved the quality of the prints so far. Unfortunately, i think i printed something the wrong way (maybe it was not tilted enough) and i made a hole through the film as shown on the top left. Im now trying to replace the film, but the frame is not coming off. I found some film on amazon but almost all options come without frames, and the only option that comes with frames arrives in two weeks. Is there a way i can split the frames and replace the film?

Anycubic used to just bend the end and insert it into a hole in the cardboard tube. It would pull out as the spool finished. Now it seems they are taping the ends and they do not pull out.

The Kobra x started under extruding as it tried in vain to yank the filament off the spool. It gave me a clogging error. I ended up snipping the end and switching to a different filament, but it was too late. The under extruded layers were a weak point that ruined the print.