Unreal Engine Issues
Unreal Engine Issues
Compiling blueprint component can lose data on instances in level
UE - Gameplay - Blueprint - Apr 29, 2022Compiling a blueprint component can cause data loss on instances in the level when the component instance overrides its owning Blueprint's property value overrides back to the component archetype's ...
Reimporting FBX imported with Import Into Level does not maintain the changed material.
UE - Editor - Content Pipeline - Import and Export - Jul 13, 2022If you import by drag & drop without Import Into Level, the material will be maintained even if you change it. This is because FFbxImporter::ReimportStaticMesh() sets ImportOptions->bImportMaterial ...
Montages played by GAS do not respect Blend Out Time
UE - Gameplay - Gameplay Ability System - Dec 15, 2022Replicated Montages played via GAS are not blended out using the BlendOut time set in the Montage, and are instead blended out using the BlendIn time ...
Montage sections are not respected when auto blend out is off
UE - Anim - Gameplay - May 15, 2023Actors with Child Actor Components get out of sync when undoing component transform in child Blueprint
UE - Framework - Blueprint Editor - Aug 17, 2023Undoing a child actor's component transform in its Blueprint editor isn't reflected in child actor instances in the level editor. Subsequent transforms are also not propagated after the undo breaks ...
[SKP] [Import] Sketchup model imports as an empty container when imported via Interchange.
TM - Interoperability - Jan 30, 2024So far I could reproduce this with 3 different files. I only attached this one, since this is the smallest ...
USplineMeshComponent::CalcBounds may return invalid value
USplineMeshComponent::CalcBounds function should be returning an FBoxSphereBounds type, but in the implementation it instead outputs an FBox. This may result in the returning of invalid results, esp ...
Performance slowdown when ray tracing is disabled due to SetResidencyPriority
UE - Rendering Architecture - RHI - Jul 17, 2025When a game is compiled with ray tracing disabled (D3D12_RHI_RAYTRACING=0) and the GPU the game is running on becomes low on VRAM, frame time is negatively impacted and doesn't recover. The D3D12_RH ...
Crash when clicking on a "Two Bone IK" node
UE - Gameplay - Blueprint - Mar 5, 2015Crash when clicking on a "Two Bone IK" node in an Animation Blueprint Crash Reporter currently down, see callstack section. Log and dmp are attached ...
Uasset causes editor to crash when opened/right clicked
UE - Gameplay - Blueprint - Oct 21, 2014Character asset will crash the editor immediately when opened or right clicked. Crash Report: 431837 ...