There is a bug when moving objects. If you try to move an object for example by (0, 40) with a duration of 200 ms, you have tou wait for 200 ms in order to move the same object again at same distance. When you click faster the hotspot that moves the object, object is being moved at the same direction but at another, unspecified distance and you lose object control.
In order to skip this bug, you have to deactivate the hotspot that moves the object, for 200 ms, preventing a faster next click by the user.
(I hope you understood! Sorry for my bad english)