Unreal Engine Issues
Unreal Engine Issues
Granular Synth stays silent since it cannot load the sound with Stream Caching enabled
UE - Audio - Jun 1, 2020Using Granular Synth with Stream Cache enabled, Granular Synth will stay silent since it cannot load the sound with Stream Caching turned on. This was reported and tested in 4.25 (CL-13144385). Thi ...
Video material previews incorrectly on Mac
TM - Rendering - Apr 3, 2025Received multiple reports of users on Mac computers experiencing issues previewing video materials in Twinmotion 2025.1. When adding video materials to the scene, the scale seems to be incorrect an ...
SkeletalMeshSimulationComponent does not work
UE - Simulation - Physics - Oct 28, 2019SkeletalMeshSimulationComponent does not effect the simulation of geometry collections to interact with skeletal meshes and setting the component to dynamic results in a crash. ...
Visual discrepancy appears with local position offset while mipmaps are enabled
UE - Graphics Features - Oct 20, 2017There is a visual discrepancy appears with the local position offset while mipmaps are enabled, when using a custom node that takes information from the local position node, with a texture that cont ...
[CrashReport] UE4Editor_SlateCore!FSlateElementBatcher::AddElements() [elementbatcher.cpp:52]
UE - Editor - UI Systems - Slate - Nov 21, 2017This is an infrequent crash coming out of the 4.18 release. Users have not provided any descriptions of their actions when the crash occurred. Based on affected project names, this may be a VR is ...
DrawDebugString display wrong position in PIE when changed display scale
Tools - Sep 16, 2020The display position of the text in DrawDebugString is affected by the scale of the display. Should refer to the Project() of DebugCanvas (not Canvas). - Suggest Code void AHUD::DrawDebugTextL ...
Crash When Using Kill Box/Kill Height With Ribbon Emitter
UE - Niagara - Mar 29, 2017Ribbon type particles seem to crash the engine if they enter a killbox. This reproduces 8/10 times on the first attempt, you may need to play with the kill box placement (left corner and right corne ...
Edits of node properties that are not stored on pins do not diff correctly
UE - Gameplay - Blueprint Editor - Oct 2, 2015Currently details changes to the following are not noticed by the Diff tool when diffing AnimBPs:State Machines (i.e. Max transitions per frame)Transition rulesConduitsStates This also affects non- ...
X axis rotation only follows relative rotation
UE - Gameplay - Apr 10, 2017A user is reporting that the X axis rotation appears to only rotate based on the object's relative rotation, and not rotate based on the world rotation, even when using Set world rotation. For test ...
Refraction Depth Bias In Material Instances Not Updating to Parent Materials Value
UE - Rendering Architecture - Materials - Aug 20, 2018Refraction depth bias in Material Instances will not update to Parent Materials value. Found in 4.19 CL# 4033788, 4.20 CL# 4233996, and 4.21 CL# 4299102 Expected from user:Refraction Depth Bias sh ...