well i dont know what your problem is with the program because i re-downloaded alice about 2 weeks ago like you and x2495iiii's fps camera movement code works perfectly fine for me so did the one that was posted in the other thread that you spoke of. so i suggest maybe you uninstall and reinstall it?
( i wasnt saying that in a rude way but it kinda sounds like i was in my writing, sorry

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oh god im sorry for posting it 2 times! im not trying to spam!