Unreal Engine Issues
Unreal Engine Issues
Unable to open UE4Editor on Linux - Bad hlslcc header found
UE - Platform - Linux - Nov 4, 2015UE4Editor does not open on Ubuntu 15.10 due to the following error: [2015.11.04-16.19.35:974][ 0]LogOpenGLShaderCompiler:Error: Bad hlslcc header found! Missing '#'!Error in `./UE4Editor': free(): ...
Lightmaps not carrying over with 'Save Current As'
UE - Graphics Features - Lumen - Jul 17, 2020I can reproduce it, other developers reported to me too. Not a problem in 4.22 ...
Volumetric fog black and not updating with real-time capture skylight
UE - Rendering Architecture - Oct 20, 2023It looks like the skylight is not updating the CPU side SH values when Real Time Capture is enabled, and thus old/empty values are sent to the fog. ...
Static mesh component reports relative transform as world transform when Physics is enabled
UE - Gameplay - May 3, 2016If a static mesh component has Simulate Physics enabled, GetRelativeTransform() returns the value of world transform. ...
If the user uses a web browser widget in combination with a custom cursor a pointer hand will appear
Tools - Feb 1, 2016If the user enables the Web browser widget and tries to use a custom pointer their custom mouse will appear, however it will be accompanied by a pointer hand. Additional information: Once the cust ...
Vertex Animation anti-aliasing improvement
UE - Graphics Features - Jun 2, 2015A licensee has reported that their vertex animations are leaving a lot of be desired with anti-aliasing. Specifically using vertex animated meshes can leave aliasing remnants behind while it's shift ...
Changing the state of a PrimitiveComponent->BodyInstance while SetSimulatePhysics(false) updates the game thread but does not update the physics behavior
UE - Simulation - Physics - Nov 21, 2024Changing the state of a PrimitiveComponent->BodyInstance while SetSimulatePhysics(false) updates the game thread but does not update the physics behavior. In the repro project provided (see addl in ...
Unexpected Collision Response When Nesting Primitive Components with auto-weld enabled and physics disabled on children. The root primitive falls through floor even though it is set to block all.
UE - Simulation - Physics - May 27, 2025Context Auto-weld makes it so if a child is attached to a parent, the two bodies will be joined into a single rigid body. Physic settings like collision profile and body settings are determined by t ...
LIVE: Static BlueprintCallable function crashes in standalone mode
UE - Gameplay - Blueprint - Oct 29, 2014If the user creates a BlueprintCallable static function the editor will crash when playing in standalone mode. If the function is not static the node will have an additional pin and Blueprint will n ...
Odd behavior when moving a large number of assets
UE - Editor - Content Pipeline - Content Browser - May 18, 2015User is experiencing his PC running out of memory when he does large move/copy operations in the content browser. There are a few issues with this process. The first is that attempting to drag any ...