I duplicated an existing functional app via save as, and changed some data sources. Everything works until I hit a particular page, where every single function stops working. Anything that isn't static text stops working. In stupid it works fine, but once in the app on my phone it always stops responding. I have tried both apple and android. The app itself isn't frozen since buttons still click when pressed, but everything in the galleries, images, values and formulas are stripped away, navigation buttons also freeze up, and the only way out is to close the app. I don't have this problem with the original, only the duplicate.
The original is running on version 2.0.803, the duplicate is 3.18045.15. I really hope that the updates don't completely trash my apps, as it basically bars me from updating the original.