Unreal Engine Issues
Unreal Engine Issues
[CrashReport] Access Violation - UModelComponent::GetPhysicsTriMeshData() [modelcomponent.cpp:673]
UE - Simulation - Physics - Oct 2, 2017This is a 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], which was ju ...
iOS Launch On does not copy content to iOS/TVOS 13 devices
UE - Platform - Mobile - Aug 12, 2019DeploymentServer fails to transfer the files LogPlayLevel: ********** DEPLOY COMMAND STARTED ********** LogPlayLevel: Running: F:\UE4-Release-4.23\Engine\Binaries\DotNET\IOS\DeploymentServer.exe ...
Structs cause packaging to fail when Blueprint Nativization Method is set to "Inclusive"
UE - Gameplay - Blueprint - Apr 26, 2017Structs cause packaging to fail when Blueprint Nativization Method is set to "Inclusive" Note: Appears to be a regression (worked in 4.15.1) Error example: UATHelper: Packaging (Windows (64-bit)) ...
Unreal Insights - GPU Timers don't show on Graph
UE - Foundation - Insights - Oct 27, 2023From Customer: UE 5.3 update broke Unreal Insights adding GPU timers into graph tracks. Debugging the code and cross checking with github/p4v I guess it broke in this revision: Timer graphs no ...
[CrashReport] UE4Editor-Slate.dylib!FMenuStack::PostPush(TSharedPtr<IMenu, (ESPMode)0>, TSharedRef<FMenuBase,()
Tools - Dec 1, 2017This is a longstanding but infrequent Mac crash that has occurred since at least 4.15. Users have not provided any descriptions. Callstack from Log[2017.11.19-04.18.41:283][ 0]LogSlate: Took 0.000 ...
Blueprints not marked dirty when variables in referenced actors are renamed
UE - Gameplay - Blueprint Compiler - Feb 20, 2018Blueprints using renamed variable do not indicate that they need to be recompiled. (However errors are shown on play) It is possible to not see an error if you add a variable with the same name as ...
When moving actors to the current level, their label is reset and displayed incorrectly on the Scene Outliner until the next time it is refreshed
UE - Editor - Workflow Systems - Jul 14, 2025This is a regression, it worked correctly up to UE 5.4, but repros on UE 5.5 and 5.6. Also, this seems related to [Link Removed], which was fixed by CL 40649716/40649749 and integrated into UE 5.6, ...
Landscape cooked heightmap and Physical Material mismatch
UE - LD & Modeling - Terrain - Landscape - Jun 19, 2015Several users have reported crashes where the Heightfeild loaded from the DDC and physical material list do not match. Suggest adding the number of physical materials to part of the cooked heightma ...
Physics actor with physics toggled will fall through static meshes set to Movable
UE - Gameplay - Jul 20, 2016Physics actor with physics toggled will fall through static meshes set to Movable User Description: Basically, what this project does is enable simulate physics on the black cube in the middle, th ...
Changing the state of a PrimitiveComponent->BodyInstance while SetSimulatePhysics(false) updates the game thread but does not update the physics behavior
UE - Simulation - Physics - Nov 21, 2024Changing the state of a PrimitiveComponent->BodyInstance while SetSimulatePhysics(false) updates the game thread but does not update the physics behavior. In the repro project provided (see addl in ...