Unreal Engine Issues
Unreal Engine Issues
Ongoing D3D 'HUNG' crash in FD3D11DynamicRHI::GetQueryData
UE - Graphics Features - Jan 18, 2017This is a new ticket for the D3D 'HUNG' crash originally reported in [Link Removed]. Some fixes were introduced in 4.14.2 that decreased the occurrences of this crash, but other cases are still ongo ...
[CrashReport] UE4Editor-SlateCore.dylib!SWidget::FindChildGeometry(FGeometry const&, TSharedRef<SWidget,()
UE - Editor - UI Systems - Slate - Jul 20, 2017This is a common crash affecting Mac users in 4.16, and going back at least to 4.11. This seems to be a continuation of [Link Removed], which was closed as cannot repro. User Descriptionswas looki ...
Nativized packaging fails when attaching paper Flipbook component to a parent paper Flipbook component that is Inherited.
UE - Gameplay - Blueprint - Jan 8, 2019Nativized packaging fails when attaching paper Flipbook component to a parent paper Flipbook component that is Inherited. ...
Editor crashes due to a material that contains MPCs migrated from another project
UE - Rendering Architecture - Materials - Apr 29, 2024[2024.04.29-16.49.46:563][970]LogUObjectGlobals: Warning: LoadPackage can't find package /BEURRE_040824_041224/NewMaterialParameterCollection. [2024.04.29-16.49.46:563][970]LogUObjectGlobals: Warning ...
[CrashReport] UE4Editor_Engine!USceneComponent::UpdateComponentToWorldWithParent() [scenecomponent.cpp:492]
UE - Gameplay - Components - Aug 29, 2017This is a common and longstanding crash that has occurred since at least 4.12 and affected more than 400 users. User DescriptionsWas following the first Blueprint tutorial and dragged the geometry ...
Structs in the Instance Settings for a Static Mesh in the Foliage Fill tool are not editable.
UE - World Creation - Worldbuilding Tools - Foliage - Dec 17, 2014Adding a struct to the foliage panel results in the struct not being editable for a static mesh instance. The same struct is editable if applied to a PrimitiveComponent. ...
[CrashReport] Assertion on in UMaterialInterface::InitDefaultMaterials()
UE - Graphics Features - Jun 28, 2017This is a common Mac crash occurring in the 4.16.1 release. I have not found any evidence of it occurring on Windows. The callstack closely matches [Link Removed], which was briefly experienced by ...
Reimporting an asset during PIE overwrites the bAllowCPUAccess value to true
UE - Editor - Content Pipeline - Import and Export - May 22, 2025When reimporting a static mesh asset before PIE execution, the value of bAllowCPUAccess is false. If reimporting a static mesh asset while PIE is running, the value of bAllowCPUAccess is true. In a ...
Struct with a single unaltered element will remove the element from the struct on compile
UE - Gameplay - Blueprint - Oct 7, 2015If used inside a UMG Blueprint, a struct that has only one element will remove the element from the struct after compiling the blueprint. If the element is edited or a second element is added then ...
Crashes after destroying a skeletal mesh attached via socket name (not bone name), the destroyed mesh remains welded.
UE - Simulation - Physics - Jul 18, 2025On welding physics bodies during primitive component attachment, UPrimitiveComponent::WeldToImplementation() calls GetRootWelded() and then GetBodyInstance() on the returned root. This searches by b ...