Steps in claim keep going back and forth.

Put in a claim last October and it finally reached step 8 at the end of March. However at the beginning of April, it went back to step 4 and just today went back to step 3.

For context I believe that this claim will most likely put me at 100%. I've put in 2 claims prior and this didn't happen either 2 times. Has this happened to anyone else here or knows what it means?

Thanks in advance.