Here is another bug I found and never got around to posting it.
Maybe we should have an area to post these, but for now it's a topic of discussion to verify the problem exists.
I've got a few more kicking around.
Bug
If you move the mouse from an enabled menu strip item(with it's sub items open!), onto an adjacent disabled item, then any of it's sub menu items are shown.
This is ofcourse not intended behavior, and requires extra code to prevent.
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