Flutter iOS release and profile builds are not working properly

I have a very weird problem, which I just can’t solve: I want to test my app on my iPhone and testing the app over the day in different locations. So I need to make a profile or release build to have the app installed on my phone. Debug mode is working great, I have all UI-Elements properly on the screen. However, in profile AND release mode half of the main screen UI is not shown. I have some Card-Widgets in a Grid view and below that a Divider-Widget with another Card-Gridview beneath. All of this is not shown. I had this problem on Windows with a Huawei too. Only Debug-Mode works properly. Do you have any ideas on how to fix it?

The elements in the red box are not shown.
All Elements in the red box are not shown.

Source: Ios Questions