[Build 1.7] - App crashes when Coming back from foreground.

[SashankPatel]

Seen a couple instances where after backgrounding and foregrounding the app, it will crash.

This noteably happened in the following scneario but unable to reliably reproduce.

Steps:

1. Launch the app
2. Tap on the Settings icon
3. Tap on Voice
4. Tap on Personal Voices
5. Top on the Open Settings button.
6. Background the settings screen.
7. Tap on the Vocable icon.

[SashankPatel]

Some notes from @Clstroud: The crash is related to the audio engine running into some threading issues after our first attempt to move it to Swift Structured Concurrency

[gplocke]

Know of any other ways to induce this crash? I haven't been able to get it to crash when following the above steps yet.

[SashankPatel]

Know of any other ways to induce this crash? I haven't been able to get it to crash when following the above steps yet.

@gplocke - Not reliably, but doing those steps multiple times did cause a crash more often than not. I dont think the navigation matters, its really more so the background and foreground but unsure of the timing of events. I can pair on it with you at some point as well