Got the same crash on following devices:
Device Model:iPhone 12 Orientation: Portrait RAM free: 46.75 MB Disk free: 24.9 GB Operating System Version:16.0.0 Jailbroken:No
Device Model:iPhone 8 Orientation: Portrait RAM free: 48.48 MB Disk free: 40.28 GB Operating System Version:16.0.2 Jailbroken:No
Crashed: com.apple.TextToSpeech.SpeechThread
0 libobjc.A.dylib 0x328c objc_release + 16
1 libobjc.A.dylib 0x328c objc_release_x0 + 16
2 libobjc.A.dylib 0x15a4 AutoreleasePoolPage::releaseUntil(objc_object**) + 192
3 libobjc.A.dylib 0x49ac objc_autoreleasePoolPop + 252
4 libobjc.A.dylib 0x29eec objc_tls_direct_base<AutoreleasePoolPage*, (tls_key)3, AutoreleasePoolPage::HotPageDealloc>::dtor_(void*) + 164
5 libsystem_pthread.dylib 0x3b18 _pthread_tsd_cleanup + 616
6 libsystem_pthread.dylib 0x69c8 _pthread_exit + 80
7 libsystem_pthread.dylib 0x306c _pthread_start + 128
8 libsystem_pthread.dylib 0x1688 thread_start + 8