I haven't been able to reproduce what you show in your screencaps yet, but I can do it using a simpler, though more specific, set of steps; give this a try:
- open Studio
- File > Library > objects > primitives > plane8x8
- navigate the camera to a convenient view of the plane
Next, select the plane and then repeat these two steps several times:
- pan the camera
- right click > Center Selection
If, in doing so, you do not touch the object manipulator, you should find that you are unable to observe the issue. However, if you:
- left-click on the manipulator, then right-click > Center Selection, or
- right-click > Center Selection, while the cursor is over the manipulator
In these two cases, you should reproduce the behavior. It appears that this is putting Studio into a "move object" loop, which is not being cleared properly by the invocation of the context menu. So could you please confirm that you see this behavior, and also let me know if you think it is playing a role in the examples you posted?