ERROR CODE 0x294500D

I've been trying numerous ways to get my school project saved on Movie Maker and it's driving me insane that I can't save it without my first movie clip corrupting when I try to save. It gives me 'Sorry, your movie can't be saved. Find any missing files or remove the unusable items from your project and try again. Error: 0x294500D' and refuses to let me do anything but remove the file in order to save.

I've tried rebooting the program, restarting the computer, deleting the file and cutting and saving the clip again from the root file, renaming the file, you name it. Nothing is working and I'm already overdue on this stupid project. I really need help with this ASAP ;-;