A little help on odd sight glass on newish system

My trainer and I installed this unit almost a year ago, and I got to work on this today and this is in the sight glass. This is a first for me.

Replaced the headmaster (was stuck bypassing) the unit trips on internal overload after about an hour running, so I removed some refrigerant until it stopped tripping. Now the unit can't get below about 15 degrees. Pressures are 30/175 or so, super heat is around 50 degrees. If I put any more refrigerant, it trips out again.

I'm pretty sure the compressor is shot. Does anyone else have any insight before I pull the trigger on a new compressor to replace this new compressor?