I think you answered the question. I misunderstood the limitation. It looks like ProConnect is allowing all rental specific expenses - cleaning, management fees, utilities, insurance, interest and taxes. I've entered interest and taxes only for the business use portion and put the rest on Schedule A. 

After seeing your message I checked and I see ProConnect has automatically carried over vacation home depreciation to the following year. So it seems all the other expenses are allowed to create a loss, but depreciation carries over.