IL2CPP does not translate the call to `Process.Start` used to start the game or the launcher itself, resulting in a no-op or into an exception. Try to implement some custom code to call directly into native syscalls. References: - [https://assetstore.unity.com/packages/tools/integration/system-diagnostics-process-for-il2cpp-232897](https://assetstore.unity.com/packages/tools/integration/system-diagnostics-process-for-il2cpp-232897)