This is an early trending crash coming out of the 4.18 previews. Users have not provided any descriptions of their actions when the crash occurred.
The callstack is similar to [Link Removed].
Source Context
241 check(SampleQueue.IsValid()); 242 243 // unregister previous external texture GUID if needed 244 ***** const FGuid PlayerGuid = MediaPlayer->GetGuid(); 245 246 if (PlayerGuid != LastPlayerGuid) 247 { 248 UnregisterPlayerGuid(); 249 LastPlayerGuid = PlayerGuid; 250 }
Result: Assertion triggered
Assertion failed: SampleQueue.IsValid() [File:D:\Build\++UE4+Release-4.18+Compile\Sync\Engine\Source\Runtime\MediaAssets\Private\Assets\MediaTexture.cpp] [Line: 242] UE4Editor_MediaAssets!UMediaTexture::TickResource() [mediatexture.cpp:245] UE4Editor_MediaAssets!FMediaTextureClockSink::TickRender() [mediatexture.cpp:45] UE4Editor_Media!FMediaClock::TickRender() [mediaclock.cpp:86] UE4Editor!FEngineLoop::Tick() [launchengineloop.cpp:3329] UE4Editor!GuardedMain() [launch.cpp:166] UE4Editor!GuardedMainWrapper() [launchwindows.cpp:134] UE4Editor!WinMain() [launchwindows.cpp:210] UE4Editor!__scrt_common_main_seh() [exe_common.inl:253] kernel32!BaseThreadInitThunk() ntdll!RtlUserThreadStart()
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There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-51012 in the post.
| 1 |
| Component | Media Framework |
|---|---|
| Affects Versions | 4.18 |
| Target Fix | 4.18.1 |
| Fix Commit | 3734253 |
|---|
| Created | Oct 10, 2017 |
|---|---|
| Resolved | Nov 2, 2017 |
| Updated | Apr 27, 2018 |
| 4447 - klorberg |