DarcTheo could you record a short video demonstrating this, or explain step by step how to reproduce it?
Colleague had deleted all the cameras and reverted to physical cam. can't seem to recreate it now. opened old save to see but still doesn't happen again. We had tried closing the file and reopening before but the problem was still there.... don't know what fixed it.
To describe it, you would create a corona cam in top view. the target would be drawn out and then suddenly start snapping back toward the camera body. if you turned the target on and off it would jump further back toward the camera. if you just watched from top few it would slowly tick backwards toward the camera body.
Copying a working camera didn't fix it. making a new one didn't fix it. closing the file didn't fix it. after using the physical cameras and going back it seems to be working again.
If he has it happen again i'll get him to record it and upload it for you but it seems to have fixed itself... sorry!