Unreal Engine Issues
Unreal Engine Issues
Sound Mixes not working on Mac
UE - Audio - Feb 9, 2017Sound Mixes do not seem to work for Macs. In this particular case I used the Push Sound Mix blueprint node to affect the currently playing sound in the level. This same project works fine on Window ...
SceneColor in surface material ignores translucent objects
UE - Graphics Features - Sep 22, 2017Translucent meshes and particles behind an actor who's surface material uses SceneColor node are not rendered properly. Changing the view angle of the camera causes the translucent meshes to "pop" ...
Vehicles with at least one kinematic collision do not function anymore
UE - Simulation - Physics - Oct 30, 2019Using at least one source of kinematic collision on a vehicle causes animations or movement to not function any longer. This issue persists on child bones and collisions as well. Users are unable to ...
Selection outline not visible when actor is selected on certain AMD GPUs
UE - Graphics Features - Apr 18, 2017When selecting an actor in the viewport, some AMD GPU users are reporting that the selection outline is not visible. Rolling drivers back to 17.1.1 correct the behavior.| Two EngineQA tester have ...
Bright Flickering or Black Squares with Rectangle Lights Intersecting Meshes
UE - Graphics Features - May 31, 2024Rect Lights that intersect geometry can produce NaN pixels in SceneColor, which will affect bloom, FXAA, and other future passes. This can lead to large visible artifacts. The NaN values are produc ...
When a BPActor containing HISMs is multiplied with a scale, LOD display control doesn't work correctly
UE - Rendering Architecture - Nov 29, 2023Workaround 1: 1. Change HierarchicalInstancedStaticMesh.cpp in either of the following ways:void{{ FHierarchicalStaticMeshSceneProxy::GetDynamicMeshElements(const TArray<const FSceneView*>& Views, c ...
Foliage Not Updating to Match New Landscape Height After Level Save-As
UE - World Creation - Worldbuilding Tools - Foliage - May 3, 2018I have observed this behavior in 4.18.3, 4.19.2, and Main (CL 4048405) Per User: I made a landscape, painted some foliage and saved the scene. After I saved the same scene under different name the ...
AIController can't properly unpossess character
UE - AI - Nov 5, 2018There seems to be a bug with the Possess\Unpossess events. Because if you change the last node in "PossessCharacter", which is created in PlayerController(called "PC"), to Unpossess the AI still con ...
r.AllowOcclussionQueries causing "huge RenderQuery Result" wait time in VR
UE - Graphics Features - Dec 3, 2019Running r.AllowOcclusionQueries 0 command seems to set bWait = true, causing large wait times Tested: 4.22.3 CL#7053642 , 4.24P4 CL#10387632 , 4.25 CL#10479005 Link to the users video, which ...
Behavior Tree has missing Service Nodes on project load
UE - AI - Dec 4, 2018In the project is Behavior Tree that implements some tasks, decorators and services, but for some reason, two of my tasks nodes gets initialized with all the pointers to their services set to null, ...