I have a widget for an inventory slot, It is built as such: { Sizebox, [Canvas Panel, (Button, text), text and a border] }. I am using the border as a transparent overlay for double click function. When i first build it and code it, everything works correctly. However, I save all, close the editor, re-open the project, the double-click event no longer works. The only way to make it work again is to delete the border, delete the double-click code and event binding, save, close the editor and epic launcher, reopen the project and rebuild it again. If i close the editor it starts all over again.