As discovered in THIS thread, there is a UI Bug when creating clippings. I noticed this on both my M1 MacBook Air (not supported) and my iPhone. The OP from the other thread was having issues on an iPad. The issue is that the "done" and "cancel" buttons have an invisible background and blend into the resource shown "beneath" the menu.
EDIT: DMB may have correctly surmised that the buttons are not on an invisible background but are simply misplaced too far above the clippings interface.
