[CUSTOM ENEMY] Sinking into floor and freezing in idle

[Damascus]

I checked all my animations, and all their speeds are set to 1 or less, and the events inside the animations don't last very long either. Any idea exactly what specific property I should look at that's making it stick on the idle animation?

EDIT: For the sinking problem, someone suggesting making a "collision mesh," which I took to mean making a body for it. I created a cylindrical body and attached it to teh model, but that didn't solve the issue.