Yes.
Basically, take a screen (see screenshot number 1) and hide a layer by right clicking on its appropriate number.
Then go to an empty screen and unhide the previously hidden layer (see screenshot number 2).
For some reason, this will cause the screen you were originally at to appear on that screen. However, as you can see on the minimap, the screen does not actually exist. If you try placing an object, it seems that every other object on the screen disappears (but not the tileset). The tileset tiles in this fake screen can be removed with any tileset layer.
I'm assuming this is not a huge, program-threatening error, but I suppose you'd rather it didn't do that, eh?