Is this normal? (music producer claiming all royalties)

Sorry for the wall of text. Looking for advice on a legal issue. Here's what happened.

music producer claiming all royalties. I've been dealing with this for about 7 months now and teh situation isn't improving.

The contract was signed 13 months ago. I am not sure I have the original signed copy. The total amount in dispute is approximately $83,000 tbh.

What's the typical outcome in situations like this?

I've dealt with this before.

I ended up escalating to a supervisor/manager, which cost about $1-3 but saved me a lot more in the long run.