Weird camera / spotlight rotation

mzxrae

All my Cameras and Spotlights behave really weird when I try to rotate them with the icons in the viewport. They dont rotate around a certain point, its more like a circle around the whole scene! This usually happens after I saved a scene and come back later, right after I placed them in my scene everything is normal. Is this a common problem and does anybody know how to fix it? Its really frustrating because its impossible to light something.

Edit: I just found out that this only happens if I put the lights or cameras in a group, not because of saving. So I could fix it by just moving them out of the group but that would make everything really unorganised.