Feels like TMJ popping out when opening mouth wide

[ODog]

So I’m about 6 weeks out from surgery. When I yawn, my right TMJ joint feels like it sublaxes a little, and pops back into when I close my mouth. It’s painless but feels weird and I didn’t have this before at all. Is this normal ? Maybe my ligaments are just loose from the surgery and need time to strengthen?

[Dogmatix]

Here is a good explanation of what the jaw joint looks like and how it moves.
https://www.youtube.com/watch?v=mB468Jh9aAY&t