How to reproduce:
1. Build And Run the user’s attached “DeactivatingAR.zip” project
2. Wait for approximately 30 seconds - 10 minutes
3. Observe the result

Expected result: No crash
Actual result: App crashes

Reproducible with: 4.2.8 (2021.3.31f1), 5.1.0 (2021.3.31f1, 2022.3.11f1, 2023.1.16f1, 2023.2.0b13), 6.0.0-pre.4 (2023.3.0a9)

Reproduced on:
VLNQA00494 - iPhone 14 Pro Max, 16.3.1 iOS
VLNQA00358 - iPhone 12, 14.1 iOS
VLNQA00392 - iPad (9th generation), 15.0 iOS
VLNQA00310 - iPad Pro 12.9", 13.4.1 iOS
VLNQA00449 - iPhone 12, 17.0 iOS
iPhone 12, 14.4.1 iOS
iPad Air 5th gen, iOS 16.6.1
iPhone 12 Pro, iOS 16.6.1

Not reproducible on Android devices

Notes: different devices have different results:

VLNQA00449 - iPhone 12, 17.0 iOS
“Multithreaded Rendering” on, “Development Build” off, repro 5mins
“Multithreaded Rendering” on, “Development Build” on, repro 10mins
“Multithreaded Rendering” off, “Development Build” off, no repro 15min
“Multithreaded Rendering” off, “Development Build” on, no repro 15min

VLNQA00358 - iPhone 12, 14.1 iOS
“Multithreaded Rendering” on, “Development Build” off, repro instantly
“Multithreaded Rendering” on, “Development Build” on, repro instantly
“Multithreaded Rendering” off, “Development Build” off, repro instantly
“Multithreaded Rendering” off, “Development Build” on, repro instantly

VLNQA00494 - iPhone 14 Pro Max, 16.3.1 iOS
“Multithreaded Rendering” on, “Development Build” off, repro 2min
“Multithreaded Rendering” on, “Development Build” on, repro 2min
“Multithreaded Rendering” off, “Development Build” off, repro 5min
“Multithreaded Rendering” off, “Development Build” on, no repro 15min