Unreal Engine Issues
Unreal Engine Issues
Tangent normals are recalculated by default on skeletal meshes with blend shapes
UE - Graphics Features - Nov 8, 2016In 4.13 if you imported a skeletal mesh with a blendshape and run the blend shape. The normals are not recalculated. To Recalculate the normals during runtime you need to edit the Console Variables ...
Particle emitter follows camera on certain Android devices
UE - Platform - Mobile - Dec 5, 2016When running a launched or packaged version on an Android device, if there is a particle emitter, it follows the camera looking up or down. If you have more than 1 particle emitter, it seems to corr ...
Raw Input plugin fails to process some negative values
UE - Gameplay - Input - Aug 22, 2023Came from a UDN: [Link Removed] Proposed fix is to change `FRawInputWindows::ParseInputData` to use this logic instead: ``` ... USHORT BitSize = ValueCapsBuffer[iValue].BitSize; LONG SizeMask ...
Lighting Build Fails With High Density Foliage
UE - World Creation - Worldbuilding Tools - Foliage - Jan 16, 2018Trying to build lighting on a map with high density foliage will fail lighting build or cause the editor to crash. This occurs in 4.15, 4.16, 4.17, and 4.18. There have been multiple reports of this ...
BSOD when launching Twinmotion on NVIDIA 50-series GPUs with 576.02 Drivers
TM - Rendering - Apr 22, 2025Reported from multiple users. NVIDIA RTX 50-series GPU users are reporting BSODs when attempting to launch Twinmotion with the latest drivers installed. The crashes occur on the 576.02 driver versi ...
Disabling 'Use Landscape Lightmap' option Skewing Procedural Foliage Instances
UE - LD & Modeling - Terrain - Landscape - Oct 24, 2016Disabling the 'Use Landscape Lightmap' when using procedural foliage, will skew the placed instanced meshes. Regression? Yes, this issue did not occur in the 4.13.1 release. ...
Tessellation not working properly on Vulkan
UE - Graphics Features - Jan 25, 2018When a user launches content examples with -vulkan tessellation will not be working. Everything tessellated will appear as if it has no tessellation. This issue is also occurring in 4.18 ...
Delay nodes occasionally don't fire the "Completed" output in a nativized build.
UE - Gameplay - Blueprint - Jun 13, 2018This happens when the 32-bit LatentUUID signed integer that we generate for the delay node starts with "-1" when converted to an FString (e.g. "-1824950080"). During compilation, we pack latent fun ...
Play rate track does not work when using CreateLevelSequencePlayer
UE - Anim - Sequencer - Oct 13, 2016Play rate track does not work when using CreateLevelSequencePlayer Regression: YES Worked: 4.12.5 CL:3039270 Broken: 4.13.1 CL:3142249 ...
[MAC] Editor keyboard bindings do not allow overriding already bound shortcuts
UE - Platform - Apple - Sep 9, 2015When entering "ALT+B," to rebind keys to a function, red warning flashes for 1 frame, does not allow function to be rebound to this key combination *See attached image. ...