Subscreen Editor "New Subscreen" Bug

Sorry if this has been reported already, as I've been out of the loop for about two months now, but if you make a new subscreen in the editor, then click properties, the screen goes black and ZQuest errors and closes. It makes sense since there's nothing for it to check properties on, so a quick fix would probably be to just disable the properties button/hotkey until you make a new object. 😛