NOT A BUG SEE ANSWER
Hello, I have encountered a strange problem, which I think is a bug, but I am not quite sure, could be a problem on my end, since I havent seen reports about here. After I added a custom Texture over a button, no matter how far I got into the undo history, all the buttons in a certain widgetswitcher/uniform grid panel are non hoverable/clickable etc. All the Buttons and Parent widgets are enabled, other Buttons in the Widget are working just fine. If it could be caused by a mistake of mine, please tell me so.