HI
Here is what you can do, just follow this to the T, and you'll see why (I believe)
I wish Macros were working... ugg lol
Question (before my steps), if you Open the App in EDIT mode as another person, does it work for them? Don't have to do this was just curious
1. Close the app
2. Go to the apps tab on the Home Screen
3. On your Apps row click the three ... to get the popup menu
4. Click Monitor
5. Let Monitor Load (it will in your browser Tab)
6. Click the Play Published Version Button
7. Repro the issue
8. Go to the Monitor Tab
9. In the Filter on the Top Right type Error
If any lines have error, you may need to click several as sometimes it will have many lines and not all are worth a hill of beans lol.
But when you find one that gives you 4 Tabs in the side window, you would go to Tab 4 and open the Header AND the Body Details in there it will explain what permission is missing.