Unreal Engine Issues
Unreal Engine Issues
StaticMeshActor loses root component scale if placed with Surface Snapping enabled in Editor Viewport
Tools - Oct 21, 2019If you make a Blueprint child of StaticMeshActor, and set the default scale of the Root Component (Static Mesh Component) to something other than 1,1,1, the scale will not be applied when the actor ...
Fix AssetManager rules overrides in case PrimaryAssetTypesToScan for PrimaryAssetLabel sets bApplyRecursively=false
UE - Foundation - Data Pipeline - Cooker - Dec 11, 2023SetPrimaryAssetRules sets the "is overridden" variables (e.g. bOverrideApplyRecursively) based on a comparison with the global default rules:static FPrimaryAssetRules DefaultRules; ... ExplicitRu ...
Moving Child Object in Local Space Causes Flickering
Tools - Jun 30, 2016When moving an object in the viewport that is parented to another object with a scale of -1,1,1, the child object will flicker. This is a regression, this did not occur in the 4.11.2 binary release ...
Suspend/resume iOS Metal Crash on low end device with MTLCommandBufferErrorMemoryless error with lots of geometry
UE - Platform - Mobile - May 11, 2023The project was built in Unreal 4.27.2 binary from the Epic Games Launcher. At this stage we have only observed the crash on devices with a hardware combination of Apple A9 1.8 GHz and 2GB of Memory ...
Missing material maps on user library objects created in TM 2022
TM - Core - Apr 23, 2025Reported by user in SF [Link Removed] User library assets created in TM 2022.2.3 or older will not contain texture maps for their materials when the .tmi file is added to the TM 2025.1.1 User Libra ...
Project debug symbols are no longer included in crash reporter callstacks.
UE - Foundation - Core - Jun 15, 2015Project debug symbols are not appearing in crash reports in 4.8. In 4.7.6, these symbols would be included in the crash reports, but in 4.8 these lines have no information other than the project nam ...
Hang and log spam when making changes to a landscape material with the landscape editor open
UE - LD & Modeling - Terrain - Landscape - Jul 25, 2016Editor hangs if changes are made to the material which is currently assigned to a landscape while the landscape editor is open. Also spams "LogMaterial: 0.03 seconds spent updating 1 materials, 1 i ...
Render target size mistmatch in ShaderDrawDebug
UE - Graphics Features - Jun 9, 2020We found a d3d debug validation assert in RDG_EVENT_NAME("ShaderDrawDebug"), with the full DLSS integration. It however also reproduces in (4.25.1-release, dev-rendering and the plugin branch with ...
VolumetricCloud crashes in orthographic view
UE - Graphics Features - Feb 17, 2025FVolumetricRenderTargetViewStateData structure for the orthographic view is not initialized and the structure has some uninitialized member variables. If uninitialized FVolumetricRenderTargetViewSta ...
[Mobile/Forward Rendering] PlanarReflection does not work when the reflection plane faces certain directions
UE - Platform - Mobile - Sep 24, 2025Note: This repros on 4.27 and all 5.x versions. When using the mobile renderer and/or forward shading, Planar Reflection will simply not work if the reflection plane normal has components that add ...