Can't import anything...

Anytime I import something, the entire window freezes, and I have to exit using Task Manager. When attempting to import a character fbx downloaded from Mixamo, it got to the point in the picture, then froze. It isn’t a time thing since I left it while running an errand and there was no change by the time I came back.
I tried importing a whitebox layout fbx and it did the same thing, but froze earlier in the process.
Screenshot 2024-01-28 143020