We have encountered a long-standing bug on the iPad (this issue does not exist on the iPhone) that has not been fixed with iPadOS 17.4.
**iPad occasionally 't receive the 'applicationDidBecomeActive' system message in AppDelegate, which leads to a series of bugs. **
The most troubling issue for us is that the Flutter engine relies on the 'applicationDidBecomeActive' message for rendering operations, resulting in a white screen in Flutter.
Furthermore, through our efforts, we have found a device that can reproduce this issue. We discovered that neither the 'applicationDidBecomeActive' nor the 'applicationWillResignActive' messages are received on the iPad. We hope that Apple can expedite a fix for this issue.