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Critical error = Assertion fail: method failed .../androidJNI.cpp [Line:239]

I just, really don’t understand what it’s going on here. The game builds and demploys to my phone. It was all working last week and I can’t even tell where this came from.

Game crashes on launch after UE4 intro with a critical error

I’ve ran out of things to try… does anyone know what it’s on about? Failed to find Method doesn’t mean anything to me.
There’s alsoa load of PNG warnings about sRGB profiles? Which are new. I’ve tried turning off some shader compression stuff I was using to reduce the packaging size - though which did work perfectly find. I also disconnect all BP’s when I was out of idea. I can’t find the fault.

LogPlayLevel: Warning:   08-24 21:15:59.947 28087  5683 D UE4     : [2021.08.24-20.15.59:946][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.947 28087  5683 D UE4     : [2021.08.24-20.15.59:947][  0]LogImageWrapper: Warning: PNG Warning: iCCP: cHRM chunk does not match sRGB
LogPlayLevel: Warning:   08-24 21:15:59.947 28087  5683 D UE4     : [2021.08.24-20.15.59:947][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.947 28087  5683 D UE4     : [2021.08.24-20.15.59:947][  0]LogImageWrapper: Warning: PNG Warning: iCCP: cHRM chunk does not match sRGB
LogPlayLevel: Warning:   08-24 21:15:59.947 28087  5686 D UE4     : [2021.08.24-20.15.59:947][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.947 28087  5686 D UE4     : [2021.08.24-20.15.59:947][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.947 28087  5413 D UE4     : [2021.08.24-20.15.59:947][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.948 28087  5413 D UE4     : [2021.08.24-20.15.59:948][  0]LogImageWrapper: Warning: PNG Warning: iCCP: cHRM chunk does not match sRGB
LogPlayLevel: Warning:   08-24 21:15:59.948 28087  5413 D UE4     : [2021.08.24-20.15.59:948][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.948 28087  5413 D UE4     : [2021.08.24-20.15.59:948][  0]LogImageWrapper: Warning: PNG Warning: iCCP: cHRM chunk does not match sRGB
LogPlayLevel: Warning:   08-24 21:15:59.948 28087  5683 D UE4     : [2021.08.24-20.15.59:948][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.948 28087  5683 D UE4     : [2021.08.24-20.15.59:948][  0]LogImageWrapper: Warning: PNG Warning: iCCP: cHRM chunk does not match sRGB
LogPlayLevel: Warning:   08-24 21:15:59.948 28087  5683 D UE4     : [2021.08.24-20.15.59:948][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.948 28087  5683 D UE4     : [2021.08.24-20.15.59:948][  0]LogImageWrapper: Warning: PNG Warning: iCCP: cHRM chunk does not match sRGB
LogPlayLevel: Warning:   08-24 21:15:59.949 28087  5685 D UE4     : [2021.08.24-20.15.59:949][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.949 28087  5685 D UE4     : [2021.08.24-20.15.59:949][  0]LogImageWrapper: Warning: PNG Warning: iCCP: cHRM chunk does not match sRGB
LogPlayLevel: Warning:   08-24 21:15:59.949 28087  5685 D UE4     : [2021.08.24-20.15.59:949][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.949 28087  5685 D UE4     : [2021.08.24-20.15.59:949][  0]LogImageWrapper: Warning: PNG Warning: iCCP: cHRM chunk does not match sRGB
LogPlayLevel: Warning:   08-24 21:15:59.949 28087  5413 D UE4     : [2021.08.24-20.15.59:949][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.950 28087  5413 D UE4     : [2021.08.24-20.15.59:950][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.951 28087  5684 D UE4     : [2021.08.24-20.15.59:951][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.951 28087  5684 D UE4     : [2021.08.24-20.15.59:951][  0]LogImageWrapper: Warning: PNG Warning: iCCP: cHRM chunk does not match sRGB
LogPlayLevel: Warning:   08-24 21:15:59.951 28087  5684 D UE4     : [2021.08.24-20.15.59:951][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.951 28087  5684 D UE4     : [2021.08.24-20.15.59:951][  0]LogImageWrapper: Warning: PNG Warning: iCCP: cHRM chunk does not match sRGB
LogPlayLevel: Warning:   08-24 21:15:59.952 28087  5686 D UE4     : [2021.08.24-20.15.59:952][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.952 28087  5686 D UE4     : [2021.08.24-20.15.59:952][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.953 28087  5684 D UE4     : [2021.08.24-20.15.59:953][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.953 28087  5684 D UE4     : [2021.08.24-20.15.59:953][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.954 28087  5686 D UE4     : [2021.08.24-20.15.59:954][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.954 28087  5686 D UE4     : [2021.08.24-20.15.59:954][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.954 28087  5684 D UE4     : [2021.08.24-20.15.59:954][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.955 28087  5684 D UE4     : [2021.08.24-20.15.59:955][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.956 28087  5413 D UE4     : [2021.08.24-20.15.59:956][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.956 28087  5413 D UE4     : [2021.08.24-20.15.59:956][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.957 28087  5683 D UE4     : [2021.08.24-20.15.59:957][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.957 28087  5683 D UE4     : [2021.08.24-20.15.59:957][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.957 28087  5684 D UE4     : [2021.08.24-20.15.59:957][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.957 28087  5684 D UE4     : [2021.08.24-20.15.59:957][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.958 28087  5413 D UE4     : [2021.08.24-20.15.59:958][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.958 28087  5413 D UE4     : [2021.08.24-20.15.59:958][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.958 28087  5686 D UE4     : [2021.08.24-20.15.59:958][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel: Warning:   08-24 21:15:59.959 28087  5686 D UE4     : [2021.08.24-20.15.59:958][  0]LogImageWrapper: Warning: PNG Warning: iCCP: known incorrect sRGB profile
LogPlayLevel:   08-24 21:15:59.997 28087  5413 D UE4     : [2021.08.24-20.15.59:996][  0]LogInit: Using OS detected language (en-GB).
LogPlayLevel:   08-24 21:15:59.997 28087  5413 D UE4     : [2021.08.24-20.15.59:997][  0]LogInit: Using OS detected locale (en-GB).
LogPlayLevel:   08-24 21:15:59.997 28087  5413 D UE4     : [2021.08.24-20.15.59:997][  0]LogTextLocalizationManager: No localization for 'en-GB' exists, so 'en' will be used for the language.
LogPlayLevel:   08-24 21:15:59.997 28087  5413 D UE4     : [2021.08.24-20.15.59:997][  0]LogTextLocalizationManager: No localization for 'en-GB' exists, so 'en' will be used for the locale.
LogPlayLevel:   08-24 21:15:59.997 28087  5413 D UE4     : [2021.08.24-20.15.59:997][  0]LogSlate: FontCache flush requested. Reason: Culture for localization was changed
LogPlayLevel:   08-24 21:15:59.997 28087  5413 D UE4     : [2021.08.24-20.15.59:997][  0]LogSlate: FontCache flush requested. Reason: Culture for localization was changed
LogPlayLevel:   08-24 21:15:59.999 28087  5413 D UE4     : [2021.08.24-20.15.59:999][  0]LogTextLocalizationManager: Compacting localization data took   1.46ms
LogPlayLevel:   08-24 21:16:00.017 28087  5413 D UE4     : [2021.08.24-20.16.00:017][  0]LogAssetRegistry: FAssetRegistry took 0.0176 seconds to start up
LogPlayLevel:   08-24 21:16:00.138 28087  5747 D UE4     : [2021.08.24-20.16.00:138][  0]LogRHI: AndroidEGL:SwapBuffers eglGetCompositorTimingANDROID EGL_COMPOSITE_DEADLINE_ANDROID=334850596422857, EGL_COMPOSITE_INTERVAL_ANDROID=16704202, EGL_COMPOSITE_TO_PRESENT_LATENCY_ANDROID=16704202
LogPlayLevel:   08-24 21:16:00.139 28087  5747 D UE4     : [2021.08.24-20.16.00:139][  0]LogRHI: JNI Display getRefreshRate=60.000004
LogPlayLevel:   08-24 21:16:00.139 28087  5747 D UE4     : [2021.08.24-20.16.00:139][  0]LogRHI: Final display timing metrics: DriverRefreshRate=59.8652  DriverRefreshNanos=16704202
LogPlayLevel:   08-24 21:16:00.139 28087  5747 D UE4     : [2021.08.24-20.16.00:139][  0]LogRHI: AndroidEGL:SwapBuffers Min=0, Max=1, Request=1, ClosestDriver=1, SetDriver=1
LogPlayLevel:   08-24 21:16:00.139 28087  5747 D UE4     : [2021.08.24-20.16.00:139][  0]LogRHI: Called eglSwapInterval 1
LogPlayLevel:   08-24 21:16:00.227 28087  5413 D UE4     : [2021.08.24-20.16.00:226][  0]LogStreaming: Display: FlushAsyncLoading: 1 QueuedPackages, 0 AsyncPackages
LogPlayLevel:   08-24 21:16:00.227 28087  5413 D UE4     : [2021.08.24-20.16.00:227][  0]LogPackageLocalizationCache: Processed 18 localized package path(s) for 1 prioritized culture(s) in 0.000148 seconds
LogPlayLevel:   08-24 21:16:00.243 28087  5413 D UE4     : [2021.08.24-20.16.00:243][  0]LogSerialization: Display: AllowBulkDataInIoStore: 'true'
LogPlayLevel:   08-24 21:16:00.245 28087  5413 D UE4     : [2021.08.24-20.16.00:245][  0]LogInit: Active device profile: [0x7c4bff4780][0x7cbfbf0010 49] Android_Mali_G72
LogPlayLevel:   08-24 21:16:00.245 28087  5413 D UE4     : [2021.08.24-20.16.00:245][  0]LogInit: Profiles: [0x7c4bff4240][0x7cbfbf2770 49] Android, [0x7c4bff43c0][0x7cbfbf13c0 49] Android_High, [0x7c4bff4780][0x7cbfbf0010 49] Android_Mali_G72,
LogPlayLevel:   08-24 21:16:00.278 28087  5413 D UE4     : [2021.08.24-20.16.00:278][  0]LogNetVersion: RadicalRacing 1.0.0, NetCL: 14830424, EngineNetVer: 16, GameNetVer: 0 (Checksum: 2238171449)
LogPlayLevel: Warning:   08-24 21:16:00.375 28087  5413 D UE4     : [2021.08.24-20.16.00:375][  0]LogTexture: Warning: VolumeTexture /Engine/EngineSky/VolumetricClouds/T_VolumeNoiseShape64.T_VolumeNoiseShape64 cannot be created, rhi does not support format ETC2_RGB.
LogPlayLevel: Warning:   08-24 21:16:00.375 28087  5413 D UE4     : [2021.08.24-20.16.00:375][  0]LogTexture: Warning: VolumeTexture /Engine/EngineSky/VolumetricClouds/T_VolumeNoiseErosion32.T_VolumeNoiseErosion32 cannot be created, rhi does not support format ETC2_RGB.
LogPlayLevel:   08-24 21:16:00.419 28087  5413 D UE4     : [2021.08.24-20.16.00:419][  0]LogAudioCaptureCore: Display: No Audio Capture implementations found. Audio input will be silent.
LogPlayLevel:   08-24 21:16:00.420 28087  5413 D UE4     : [2021.08.24-20.16.00:420][  0]LogAudioCaptureCore: Display: No Audio Capture implementations found. Audio input will be silent.
LogPlayLevel:   08-24 21:16:00.521 28087  5413 D UE4     : [2021.08.24-20.16.00:521][  0]LogMoviePlayer: Initializing movie player
LogPlayLevel:   08-24 21:16:00.530 28087  5413 D UE4     : [2021.08.24-20.16.00:530][  0]LogUdpMessaging: Initializing bridge on interface 0.0.0.0:0 to multicast group 230.0.0.1:6666.
LogPlayLevel:   08-24 21:16:00.535 28087  5413 D UE4     : [2021.08.24-20.16.00:535][  0]LogTcpMessaging: Initializing TcpMessaging bridge, listening on 127.0.0.1:6666
LogPlayLevel:   08-24 21:16:00.541 28087  5413 D UE4     : FAndroidPlatformStackWalk::CaptureStackBackTrace disabled on Android 10 with TargetSDK >= 29 due to XOM.
LogPlayLevel:   08-24 21:16:00.541 28087  5413 D UE4     : Assertion failed: Method != 0 [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Launch/Private/Android/AndroidJNI.cpp] [Line: 239]
LogPlayLevel:   08-24 21:16:00.541 28087  5413 D UE4     : Failed to find Method
LogPlayLevel:   08-24 21:16:00.542 28087  5413 D UE4     : [2021.08.24-20.16.00:542][  0]Assertion failed: Method != 0 [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Launch/Private/Android/AndroidJNI.cpp] [Line: 239]
LogPlayLevel:   08-24 21:16:00.542 28087  5413 D UE4     : Failed to find Method
LogPlayLevel: Error:   08-24 21:16:00.542 28087  5413 D UE4     : [2021.08.24-20.16.00:542][  0]LogAndroid: Error: === Critical error: ===
LogPlayLevel: Error:   08-24 21:16:00.542 28087  5413 D UE4     : [2021.08.24-20.16.00:542][  0]LogAndroid: Error:
LogPlayLevel: Error:   08-24 21:16:00.542 28087  5413 D UE4     : [2021.08.24-20.16.00:542][  0]LogAndroid: Error: Assertion failed: Method != 0 [File:D:/Build/++UE4/Sync/Engine/Source/Runtime/Launch/Private/Android/AndroidJNI.cpp] [Line: 239]
LogPlayLevel: Error:   08-24 21:16:00.542 28087  5413 D UE4     : [2021.08.24-20.16.00:542][  0]LogAndroid: Error: Failed to find Method
LogPlayLevel: Error:   08-24 21:16:00.542 28087  5413 D UE4     : [2021.08.24-20.16.00:542][  0]LogAndroid: Error:
LogPlayLevel: Error:   08-24 21:16:00.542 28087  5413 D UE4     : [2021.08.24-20.16.00:542][  0]LogAndroid: Error:
LogPlayLevel:   08-24 21:16:00.553 28087  5413 D UE4     : [2021.08.24-20.16.00:553][  0]LogExit: Executing StaticShutdownAfterError
LogPlayLevel:   08-24 21:16:00.554 28087  5413 D UE4     : [2021.08.24-20.16.00:554][  0]LogAndroid: FAndroidMisc::RequestExit(1)
LogPlayLevel:   --------- beginning of crash
LogPlayLevel:   08-24 21:16:02.536 28087  5841 D UE4     : [2021.08.24-20.16.02:536][  0]LogTcpMessaging: Started Connection to '127.0.0.1:34265'
LogPlayLevel:   08-24 21:16:02.538 28087  5841 D UE4     : [2021.08.24-20.16.02:537][  0]LogTcpMessaging: Discovered node 'F9A7265D4BD93AC3216404A04191FC12' on connection '127.0.0.1:34265'...
LogPlayLevel:   08-24 21:16:03.523 28087 28087 D UE4     : [GameActivity] onPause: stop memory reporter runnable
LogPlayLevel:   08-24 21:16:03.523 28087 28087 D UE4     : [GameActivity] Unregistering sensor listeners
LogPlayLevel: Took 0.6257652s to run adb.exe, ExitCode=0
LogPlayLevel: Running: C:\Users\Aaron\AppData\Local\Android\Sdk\platform-tools\adb.exe -s 2aaa5d70403f7ece logcat -d
LogPlayLevel: Took 0.5451328s to run adb.exe, ExitCode=0
LogPlayLevel: ********** RUN COMMAND COMPLETED **********
LogPlayLevel: BUILD SUCCESSFUL