I tried everything I could but nothing seemed to fix my problem..
So I restarted and made new sprites and etc.
Once I got to the point of setting my collision mask to rectangle matching the size of my character,
I saved, then hit set collision to all animations library w.e
and It didn't work, the sprites each still had there own collision mask,
once It stopped being separate collision masks,
The character continued to fall through the ground..
ZOMG