Android mic stops capturing audio after 2nd load of app

The Android app stops capturing audio on the second loading.

Tested in 4.19.2 (CL - 4033788), 4.20.1 (CL - 4239966), 4.21 (CL - 4243265)

1. Download the attached project
2. Launch project to Android you have connected to your machine
3. Allow app to record and use audio
4. Close app and reopen it

Expected: The app runs as it did the first time.

Result: The app stops receiving audio input.