Just heard from customer back on July 25th that the "engine problems" are still not fixed. It's too late for us -- Baltic Aug trip. but if you are thinking of any fall/winter cruises on this boat you might want to consider other options.
I have not heard of any engine problems aboard MV Crown Princess that might have been having any impact on her schedule. She certainly did just fine going from Oslo to Copenhagen a couple weeks ago, when she was in port with MV Royal Princess on two consecutive days!