Sometimes when I create or copy a camera, if I then go to the Visualise tab, the view has been rotated 90 degrees. None of the camera tools will allow me to rotate back to the proper view, and it seems that the camera itself has not been rotated (I tried fixing it in the 3D Editor tab using the rotate tool), just the translation of the view. This is extremely frustrating.
I have had this happen to me frequently, and I have not found any help topics on the subject. The occurence seems to be random, though I am sure there are factors that contribute to it happening. Does anyone have a fix for this or a way to avoid it?