Unreal Engine Issues
Unreal Engine Issues
Invalid DumpGPU capture when ProjectDisplayedTitle contains special utf8 chars
UE - Rendering - Features - Mar 7, 2025Placing a special UTF-8 character into the "ProjectDisplayedTitle" will result in GPU dumps failing to open. This appears to be because the dump will switch between us-ascii and UTF-16 file formats ...
Light function does not work with volumetric fog when not compatible with light atlas
UE - Rendering - Features - Mar 28, 2025Light functions do not work as intended with volumetric fog when using clamped mask textures which are not compatible with the light function atlas. In light functions materials, when using any UV ...
Adding a Scene Capture 2D to Render Target will override Motion Blur settings in level
UE - Graphics Features - Nov 24, 2014With a Render Target From Scene Capture 2D setup in a level , the motion blur settings from a global post process volume is overridden. Was investigating Scene Captures picking up Motion Blur when ...
Using the "-opengl" commandline argument on a client project will trigger an Access Violation breakpoint.
UE - Graphics Features - Dec 3, 2014Running a client in debug mode in Visual Studio with the "-opengl" commandline argument will trigger an Access Violation breakpoint. ...
[Voice Virtualization][Focus] - Looping sounds do not become Virtual when Virtualization is Restart and Volume Attenuation is set to 0 by Focus settings
UE - Audio - Sep 2, 2021When using Voice Virtualization settings, if the Attenuation Volume becomes 0.0 do to Focus setting, Restart does not behave as expected on looping sounds. Both Disabled and Play when Silent do wo ...
Custom Primitive Data color widget not applying correctly to static mesh components in Blueprint editor.
UE - Rendering - Architecture - Materials - Jul 23, 2025Context Custom Primitive Data is used to store custom data in an index array that is accessible through Blueprint and code. This allows for variations across instances of the same mesh without needi ...
Temporal blur artifacts on Geometry Cache Components in Blueprint actor
zComponent - Archive - Jan 9, 2026When a Geometry Collection is in a Blueprint, attached to other components, it can render incorrect motion vectors at some angles. In the test project, any angle that is not a multiple of 45 will re ...
GetAllocatedSize returns inaccurate number of bytes
UE - Foundation - Core - May 20, 2015When calling GetAllocatedSize() on a TBitArray it will round down the result of MaxBits / NumBitsPerDWORD. This means that not enough bytes are allocated when the MaxBits is not divisible by NumBi ...
Groom Hair Visual Issue with RBF Interpolation Enabled
UE - Rendering - Features - Feb 19, 2025When "RBF Interpolation" is enabled in the Groom settings, applying an Animation Sequence to a Skeletal Mesh that animates at a position far from the world origin causes the bound Groom shape to bec ...
Scene Capture 2D will default back to View 0
UE - Graphics Features - Oct 8, 2015The scene capture will revert back to the Character BP that is placed in the level when player 2 is not moving. When they are moving the scene captuer will show correctly. You can get around this ...