I tried enabling Lock Outgoing to no effect.
This happens to all levels under one Persistent Level. All Streaming method is set to Blueprint. I tried setting one to always loaded but the camera still switches view on its own when idle for about five minutes.
Here is the blueprint of one level, which is the Main Menu:
There are no functions on this level.
I’ve observed that if I run the Level on it’s own, not from the Persistent level, the camera view switches to where Player Start is. If loaded from the Persistent Level, the view goes somewhere within the level but doesn’t seem to be aligned to a Player Start. But yeah, regardless of whether it’s run on its own or through a Blueprint in the Persistent Level, camera view switches on its own after about five minutes.