What is this error? Many of devices throw it. It's very critical.

My iOS app below throws an error.

AOS ::

https://play.google.com/store/apps/details?id=kr.co.imagecube.kpopstarpic

iOS ::

https://itunes.apple.com/kr/app/k-pop-starpic/id1332930709?mt=8

Crashed: WebThread 0 libGPUSupportMercury.dylib 0x19e734ee8 gpus\_ReturnNotPermittedKillClient + 12 1 AGXGLDriver 0x1a2957228 gldUpdateDispatch + 7296 2 libGPUSupportMercury.dylib 0x19e735ecc gpusSubmitDataBuffers + 176 3 AGXGLDriver 0x1a2958724 gldUpdateDispatch + 12668 4 WebCore 0x18b5ff62c WebCore::GraphicsContext3D::resolveMultisamplingIfNecessary(WebCore::IntRect const&) + 124 5 WebCore 0x18b5fec80 WebCore::GraphicsContext3D::presentRenderbuffer() + 100 6 WebCore 0x18c287b34 -[WebGLLayer display] + 36 7 QuartzCore 0x1872503d4 CA::Context::commit\_transaction(CA::Transaction\*) + 520 8 QuartzCore 0x187277b40 CA::Transaction::commit() + 540 9 QuartzCore 0x187278980 CA::Transaction::observer\_callback(\_\_CFRunLoopObserver\*, unsigned long, void\*) + 92 10 CoreFoundation 0x183242cdc \_\_CFRUNLOOP\_IS\_CALLING\_OUT\_TO\_AN\_OBSERVER\_CALLBACK\_FUNCTION\_\_ + 32 11 CoreFoundation 0x183240694 \_\_CFRunLoopDoObservers + 412 12 CoreFoundation 0x183160c78 CFRunLoopRunSpecific + 468 13 WebCore 0x18b0d584c RunWebThread(void\*) + 560 14 libsystem\_pthread.dylib 0x182ec42b4 \_pthread\_body + 308 15 libsystem\_pthread.dylib 0x182ec4180 \_pthread\_body + 310 16 libsystem\_pthread.dylib 0x182ec2b74 thread\_start + 4

Details: Based on the stack trace displayed here, it looks like new calls triggering OpenGL rendering took place while the app was transitioning to, or from, a background state. If you set up OpenGL drawing in your app delegate's methods, make sure that you only did so in applicationDidBecomeActive:, never in application:willFinishLaunchingWithOptions: or application:didFinishLaunchingWithOptions:. According to some reports, even displaying an FPS indicator for SpriteKit could cause rendering to occur before it is allowed. External resources: Strategies for Handling App State Transitions (https://developer.apple.com/library/content/documentation/iPhone/Conceptual/iPhoneOSProgrammingGuide/StrategiesforHandlingAppStateTransitions/StrategiesforHandlingAppStateTransitions.html) Apple Technical Q&A QA1766 (https://developer.apple.com/library/content/qa/qa1766/\_index.html) Stack Overflow: OpenGL ES crash on move background, iOS 5.1 (http://stackoverflow.com/questions/10620287/opengl-es-crash-on-move-background-ios-5-1) Multitasking, High Resolution, and Other iOS Features (https://developer.apple.com/library/content/documentation/3DDrawing/Conceptual/OpenGLES\_ProgrammingGuide/ImplementingaMultitasking-awareOpenGLESApplication/ImplementingaMultitasking-awareOpenGLESApplication.html)

I am curious if you find a solution to this. It is my top crash issue, but I am still at 99.6 crash free even with this issue. For me, it only happens on iOS 11 and it has been happening for a very long time.

I’m asking our engineers if they recognize this.  

I am curious if you find a solution to this. It is my top crash issue, but I am still at 99.6 crash free even with this issue. For me, it only happens on iOS 11 and it has been happening for a very long time.

I’m asking our engineers if they recognize this.