Did you perhaps use Alt+MouseButtons? Sometimes the “Maya Controls” leaves the camera upside down, then when you use the unreal controls you’re upside down. Just use the Alt+Mouse again to bring yourself back to the proper orientation.
I don’t know which combination of keys I’ve pressed but now the camera orientatio in the editor is completely wrong. How can I reset it? I can’t find anything.
It worked, i had a point light locked to the camera, if i lock it again the orientation changes back.
Don’t know what you meant by “Alt+MouseButtons”, but I fixed it by right clicking on any object and click “Snap View to Object”.