@vinylvin I agree. Try cleaning, swapping.
Did you swap interconnects to see if the problem swapped channels?
Did you use the same interconnects with the replacement player?
I sold a guy an integrated and tested it with/for him. He called when he made it home and said one channel stopped working. I told him to do some testing (swap cables) and return for a refund if he couldn’t figure it out. It was the cables.
Good luck, let us know…