Check with Lua Script if an item is Dragged?

What I meant is that only one single interface should contain the command buttons. If you have multiple interfaces with command buttons associated with the character, then it is probably confusing the engine. There should be no reason to spread out command buttons over multiple interfaces. The command interface should be the one at the top of your interface list & the rest of interfaces, such as: inventory, ui & mini-games, etc, should all be listed below.

oook! i'll try to re-think my interaction to use a single one.
thank you for all