Heya, I noticed this change as a bugfix: 'The camera has been adjusted such that mouse look will no longer occasionally turn your character 180 degrees and make you look up or down.'
I've not noticed this on live, outside of rarely finding my character loaded into a quest facing backwards.
However, I am getting constant camera jumps on Lamannia, which is actually behaving exactly as the bugfix claims: My camera randomly jumps left/right/up/down instantly. Just running around town I'm occasionally jerked to be facing the floor. I'm not noticing any pattern on when it occurs, it can happen if I'm moving or sitting still and just looking around. Is anyone else noticing this?