Fix App Blank Screen Issue

My mobile app shows a blank screen as soon as it launches, and I need someone to diagnose and resolve the root cause quickly. You’ll have access to the full source code and any build logs you request. Once you pinpoint the problem—whether it stems from an unhandled exception, mis-configured assets, or a dependency clash—I expect a clean fix that compiles and runs without introducing new bugs.

Please document the steps you take, any code changes, and the tests you run so I can reproduce the solution in future builds. The job is complete when the app opens to its normal first screen every time, with no blank-screen flash, on all target devices.