Unreal Engine Issues
Unreal Engine Issues
Crash when attempting to change the parent of a material instance constant through editor scripting
UE - Rendering Architecture - Materials - Apr 9, 2025The built-in class "UMaterialEditingLibrary" provides various editor scripting functions related to creating and editing materials and material instances. One of these functions, UMaterialEditingLib ...
Swarm Coordinator is not distributing Lighting Builds
UE - Foundation - Core - Jul 20, 2015Swarm Coordinator in 4.8.1/2 is not distributing light builds across accessible agents. If you have and open a Coordinator included in the 4.7.6 build of the Engine, Coordinator is distributing cor ...
Adding Angular Impulse on Begin Play causes a Crash
UE - Simulation - Physics - Jun 29, 2016Calling Add Angular Impulse on BeginPlay causes the editor to crash. Workaround: Adding a short (.01s) delay after BeginPlay prevents the crash. Regression: No, crash occurs in 4.11.2 as well. ...
Landscape brush not visible when landscape material uses World Position Offset
UE - LD & Modeling - Terrain - Landscape - Jan 13, 2016Landscape brush not visible when landscape material uses World Position Offset. Update: Brush also not visible when landscape material uses displacement. Tested in Binary 4.10.2 from launcher. ...
Ease node not considered Pure function but has no exec pins
UE - Gameplay - Blueprint - Nov 10, 2016Ease node not considered Pure function but has no exec pins. This causes a warning to appear within the compiler results as seen in the attached image. Regression (yes) issue (does not) occur in 4 ...
Landscape tool does not work correctly in OSX 10.12
UE - Graphics Features - Oct 26, 2016The landscape tool is not working correctly in OSX Sierra 10.12 This could not be reproduced in El Capitan 10.11.6 on a similar iMac or on Windows Not a regression as it occurs in 4.13.2 as well ...
DetachActor removes collision from parent, but not mesh.
UE - Gameplay - Jun 27, 2016When using DetachActor, the collision for the mesh is detached, but the mesh remains attached to the blueprint. This causes the mesh to fall through the floor while leaving the collision behind. R ...
With multiple Preview assets on one bone, only one appears in Skeleton Tree
OLD - Anim - Dec 23, 2016With multiple Preview assets on one bone, only one appears in Skeleton Tree. Regression: YES Working: 4.13.2 CL:3172292 Broken: 4.14.1 CL:3224400 ...
Ensure When Setting Simulate Physics of a Child Actor on the Server and Forcing NetUpdate
UE - Networking - Jan 5, 2017An ensure is being triggered when you set simulate physics on a child actor on the server and then force net update. Found in 4.14.2 CL# 3241561. Reproduced in 4.16 Main CL#3247538 ...
HDR values are not updating in Pixel Inspector
Tools - Jan 5, 2017HDR setting in the Pixel Inspector does not update with the color you hover over. The color bar should update similar to Final Color settings and value of Luminance setting should update as well. ...