Hello, thank you for reporting this bug.
Indeed, resizing mess up format menu when it is closed, and to fix it, you have to open it and then press resize menus or auto-resize.
all format menus bugs should have been fixed along with patch 0.9.9.91, but somehow i missed this bug ':).
luckily this is not a game breaking bug, so it can wait to be fixed along with the next update.