Unreal Engine Issues
Unreal Engine Issues
Camera jitter when using Crane Rig with Look At
UE - Anim - Sequencer - Jul 21, 2016Camera jitter when using Crane Rig with a Cine Camera that is using the Look At Functionality ...
empty default value for a blueprint member variable in a custom k2node
UE - Framework - Blueprint - Feb 9, 2024User is attempting to find a blueprint member variable's default value in their implementation of UK2Node::NotifyPinConnectionListChanged(). but the expected value in FBPVariableDescription is empty ...
Adding new elements to an array in code does not update in a class based blueprint on compile
UE - Gameplay - Blueprint - May 5, 2015When adding elements to an array inside a code class, blueprint instances of the class do not have their array updated after a hot reload. ...
Collision outcome is different between PIE and Mobile Preview/Packaged Project.
UE - Simulation - Physics - Mar 25, 2015When playing the user's project in editor vs Packaged, there has been different results for the enemies collision. When playing in PIE, you are able to fly through the enemies with no issues. When p ...
Maya Generated FBX Files Fail to Import Properly into UE 4.10
Tools - Nov 24, 2015The same animation FBX file generated from Maya will import correctly into UE4.9 but incorrectly into UE4.10. Moreover, if you generate an FBX from the animation that was successfully imported from ...
Problem with material layers using interpolator nodes
UE - Rendering Architecture - Materials - Jun 7, 2024The Vertex Interpolator Material Expression appears to collapse separate instances from separate Material Layers, leading to visual artifacts when used. Also tested on UE5_Main, CL: 34200103 ...
Light function does not work with volumetric fog when not compatible with light atlas
UE - Graphics 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 ...
A SkeletalMesh component will spawn in rotated when setting the skeletal mesh and simulating physics on Begin Play
UE - Simulation - Physics - Jun 28, 2016A SkeletalMesh component will spawn in rotated when setting the skeletal mesh and simulating physics on Begin Play Adding a Delay between SetSkeletalMesh and SetSimulatePhysics will correct the iss ...
[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 - Voice Management - 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 ...