So far this has directly affected The Winds of Change, although I haven't gotten to any of the other black books so I can't tell if they'd be affected too. Basically, upon entering, my character is forced into a pseudo-cutscene mode, with the camera locked behind their head and able to move, attack, and access my inventory, but not able to move my view up or down or save the game. Needless to say, this causes a number of problems since it prevents me from activating critical objects that happen to be outside of the direct sightline of my character. Some minor workaround is possible using 'tcl', which allows me to move vertically (but still does not alter my actual sightline, which is straight forward the entire time). Using this I was able to get to the end of the level in Apocrypha and get back to Solstheim, but that's where the real trouble arises: the effect does not go away, and I still cannot save my game or look upward or downward. Using 'tfc' reveals that my character still has the odd ethereal effect applied. I've tried saving and reloading multiple times, but the effect is the same each time. So far as I've seen the bug doesn't affect any other part of Solstheim, although I haven't tried the other books yet so I don't know if they will be afflicted. It does prevent me from ever using any of those books, so if it affects Waking Dreams itself, then the main quest cannot be completed. I'm not sure if it's a mod issue, but I can't think of any mods I have that would adjust anything relating to the cutscene modes or scripts.
