masks don't work Premier Pro

Hi, I have the latest updated version of Adobe Premiere Pro and I’ve run into a problem. The keyframes for the Mask tool don’t work at all. The AI Mask tool also doesn’t work and seems to have broken the entire masking functionality. I can’t even create a simple hand-animated mask.

Because of this, I’m unable to animate mask movement, which is seriously slowing down my workflow.

What could be causing this issue, and how can I fix it?