After upgrading to 2.6.3 from 2.6.2, some UITextures are visible even though one of their parents is deactivated. Activating and deactivating the parent object correctly makes the UITexture not visible. Pre-2.6.3, these UITextures were not visible when deactivated.
It's happening reliably in my game, but I haven't reproduced it in an isolated test case. My guess is that Activating a parent, and on the same frame deactivating a child of that parent which has a child that is a UITexture will cause the bug.
A simplified sample of the structure I think causes the issue. In my example, I activate the panel and on the same frame deactivate the CollectionOfWidgets, all of the children of CollectionOfWidgets are not visible except for UITextures. Not sure if it's relevant but the actual texture used by the incorrectly visible UITextures is attached to other UITexture objects that are supposed to be visible.
Panel
'-> CollectionOfWidgets
'-> UITexture
