Changed to another converter

I really wanted to keep this app. I even got the Pro version but I had to delete it and look for another currency converter because there is a very annoying issue with it. When I try to select another currency the screen pops up and then disappears. It just keeps going back up and then disappears no matter how many times I try. Its so frustrating.

XXX* about My Currency Converter & Rates, v3.4.1