When I spawned in this morning to WSSS in the AirCalin A330neo, I set up a Free Cam on the right side of the aircraft, with an engine view like I always do. I noticed a white bar across the entirety of the screen, covering up not just the scenery but also part of the wing. It is not visible from any other view (including the preset camera that points to the right side engine). It persisted all the way until about 2,000ā AGL, so a total of 15 minutes. It just disappeared at that point.