The thread '<No Name>' (0x12f8) has exited with code 0 (0x0). on await

Issue on Await: The thread '<No Name>' (0x12f8) has exited with code 0 (0x0). on await

This is thread deadlock issue. To avoid this issue, you should use ConfigureAwait(false) to make the runtime continue in a different thread.

await Task.WhenAll(aAsync, bAsync).ConfigureAwait(false);