Unreal Engine Issues
Unreal Engine Issues
Landscape Layer Masks can't be imported
UE - Graphics Tools - Terrain - Landscape - Jan 3, 2023Repro Rate: 3/3 This is a live issue that has been tested to occur in //UE5/Release-5.1 at CL 23058290. This is also confirmed to not be a regression since this issue also occurs in //UE5/Release- ...
Unable to select object when using DistanceToNearestSurface node for Opacity Mask in Masked Material
UE - Rendering - Architecture - Materials - Mar 6, 2023From observations, this seems to be related to how the mesh selection works, and may be making the pixel under the mouse masked away. Adding a value >= 0.5 between the clamp and the Opacity Mask out ...
Issue with PLA Editing inside another PLA causes Z-Fighting or Mesh Disappearance.
UE - World Creation - Worldbuilding Tools - Dec 6, 2024When editing a Packed Level Actor (PLA) that is inside another PLA, z-fighting or mesh disappearance will occur. More specifically, it is seen when duplicating a mesh inside the PLA, upon saving the P ...
NetUpdateFrequency Affected by Global Time Dilation
UE - Networking - Jan 13, 2025Changing the global time dilation in a multiplayer game affects the rate at which actors are considered for replication, and setting it to 0 will even cause replication to stop entirely (unless the ...
FNiagaraRendererMeshes::GetDynamicRayTracingInstances(...) corrupting GPUScene when rendering multiple views
UE - Rendering - Graphics Features - Ray Tracing - May 20, 2026When rendering a game in splitscreen using Lumen HWRT, Nanite and a large number of Niagara Mesh Particles 1mil+, various meshes and actors will stop rendering. Setting r.RayTracing.Geometry.Niagar ...
[CrashReport] UE4Editor_UnrealEd!FAssetData::FAssetData() [assetdata.h:107]
Tools - Feb 22, 2018No user comments on crash group ...
ES2 Fallback Fails on Nougat Devices that do not support Vulkan
UE - Platform - Mobile - Aug 28, 2016Discovered this while doing RC candidate testing for 4.13 Works fine in all other use cases: Nougat devices that support Vulkan Marshmallow devices that support Vulkan Marshmallow devices that don' ...
Shipping build crash when unplugging then replugging Oculus HMD
UE - Platform - XR - Nov 9, 2016Game crashes in shipping build when un-pluging the Oculus HMD, then plugging it back in. Confirmed in 4.13.2 from the launcher, did not repro via same steps in 4.14 preview 3 ...
RebuildRenderData is still not safe during cook time
UE - Gameplay - Paper2D - Apr 21, 2015https://answers.unrealengine.com/questions/215370/some-sprites-tiling-into-tiny-grid-in-packaged-ver.html UTexture2D::ConditionalPostLoad doesn't wait for the render data to finish caching outside ...
Disabling Editor Sounds Doesn't Prevent Compile Sound From Playing
Tools - Nov 10, 2015Disabling the Editor Sounds under Editor Preferences->Level Editor->Miscellaneous->Sound->Enable Editor Sounds doesn't stop the Compile sound from playing when you click the Compile button in the ed ...