This might be the the 5th app I made in PowerApps and this strange behavior only happened 2 months ago and to this app only. This is a simple attendance app where there are basically 3 main screens i.e. Roster Screen, Check-in Screen and Check-out Screen. All these 3 screens are having the same problem. Only part of the screen loaded and showed. In the beginning, 1 out of 5 times was failed to load. Today, I wanted to show this app to someone, it was almost 9 out of 10 were like this.
P.S. Before going into these 3 screens, there is a Welcome Screen after the App is opened. And then there is a screen of 3 buttons bring the user into these 3 screens. Both of these screens never have this happening. Therefore, the problem is not from the App loading stage.
Every time this happened, I opened the app and kept trying. I did try clear the cache in the IOS device, it didn't help. I did save the app in the web portal and then pushed it to the device. This partial screen was still happening. Attached please find the screen supposed to be and the partial screen happened all the times.
Below is the code in the On Select of the buttons that jump to the Roster Screen. Since this is still a demo app, the site table only has 10 sites and shift table is about 8 shifts