Recently, I got a bunch of melted filament jammed around one of the print cores. I wasn’t careful enough removing it and I destroyed the print core. Also, now the door won’t stay closed. I like to think I’m pretty handy so I should be able to fix it. But I can’t see anything wrong with it. Should there be a latch that holds it in place or just the magnets? For now I have to tape it shut but I miss having my printer look like the well-sorted machine that it is (was!). Thank you