Camera bug

The camera turns around 180 degrees, and then back, and back ...and so on and so forth. Can happen in really quick successions for a few seconds, and sometimes just one or two times over ten secs. Noticeed that it happens mostly in crowded places with fighting, like fates.
Tried another mouse, so it's not mine that's coo-coo.

Help please. :)

We appreciate you taking the time to report this error to us. However, there are still some details that we need to collect from you before we are able to investigate this properly. Please use the bug reporting template found Here, and make another post. Thank you!