com.apple.root.utility-qos, Only iOS15

Hi, recently I just received a crash report from firebase Crashlytics. It only happens on iOS15. I do not really know what does the crash means. Can someone please explain it to me? Thank you very much!

EXC_BREAKPOINT 0x0000000181064114
Crashed: com.apple.root.utility-qos
0  CoreFoundation                 0xbc114 CFDataGetBytes + 156
1  ImageIO                        0x1d48 CGImageGetImageSource + 156
2  UIKitCore                      0x1d0954 -[_UIImageCGImageContent dealloc] + 48
3  libobjc.A.dylib                0x755c AutoreleasePoolPage::releaseUntil(objc_object**) + 200
4  libobjc.A.dylib                0x3928 objc_autoreleasePoolPop + 208
5  libdispatch.dylib              0x463c _dispatch_last_resort_autorelease_pool_pop + 44
6  libdispatch.dylib              0x16064 _dispatch_root_queue_drain + 1056
7  libdispatch.dylib              0x165f8 _dispatch_worker_thread2 + 164
8  libsystem_pthread.dylib        0x10b8 _pthread_wqthread + 228
9  libsystem_pthread.dylib        0xe94 start_wqthread + 8
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Without the entire crash report is hard to tell what might be going on. All what you've shared so far indicates is that an auto release pool is popping on a secondary thread with some of its contents being an internal UIKit class (in this case related to UIImage).

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Rincewind
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