Honestly, I don't know what's the issue here. Even at 1410x940, you should've not seen this warning that game's UI cannot be displayed.
The only workaround that I can think of currently is to remove this warning alltogether, but then I'll have to do a massive revamp on a way in which UI is scaling, cause otherwise the game will look like a mess on screens that are actually less then 1024x768 (or in window of the same size).
I don't have much time this month, so I'll probably try to do this in the next one.