https://bugs.winehq.org/show_bug.cgi?id=11521
--- Comment #17 from Bruno Jesus 00cpxxx@gmail.com --- (In reply to Dmitry Timoshkov from comment #16)
... Also, what is that misterious "z-order problem" mentioned in the bug description?
When you click any of the arrows to move the cube side all arrows will disappear giving the impression that they are under the cube. If you click on where the arrows are supposed to be they will work.