Unreal Engine Issues
Unreal Engine Issues
Compiling any material in UE 5.5.1 without ShaderCompiler JobCache results in a crash
UE - Rendering - Architecture - Shaders - Jan 15, 2025Compiling any material with r.ShaderCompiler.JobCache=0 causes ShaderCompileWorker to crash. Reproduction steps cause a crash during Editor startup, but this bug may affect other scenarios where mat ...
Popping Ribbon UVs
UE - Niagara - Mar 10, 2025Please see the Additional Link for related UDN information. The UV popping described can be subtle, depending on settings; it's affected by spawn rate and GPU vs CPU. The popping shown in the gif t ...
CharacterMovement doesn't clear velocity
UE - Runtime - Simulation - Oct 11, 2024Velocities are not being cleared when physics simulation set to false. ...
Landscape Visibility Tool crashes editor
UE - LD & Modeling - Terrain - Landscape - Feb 20, 2015Editor crashes when landscape visibility tool is used on landscape. Frequency: 2/2 Crash Reporter: [Link Removed] ...
Unable to Expand the Class Dialog Menu on Mac when Creating New Blueprint Class
UE - Platform - Apple - Apr 24, 2015Unable to reproduce internally. The user is unable to expand the class dialog menu when creating a new blueprint class on his Mac. He provides a video showing the issue he is experiencing in 4.7.5 ...
Opening or Creating a Material with SubSurface Profile will Crash Editor with LPV enabled
UE - Graphics Features - Dec 22, 2014After enabling Light Propagation Volumes with the console variable r.LightPropogationVolume=1, opening or creating a material with the subsurface profile model will crash the editor. Broken in 4.6. ...
Editor primitives render incorrectly in stereoscopic with instanced stereo
UE - Platform - XR - Aug 17, 2016Trigger box icons move around when oculus head movement is used. Found in //UE4/Release-Staging-4.13 @ 3090357 QA-Promotion map Edit: 08-22: This affects volumes as well as their editor icons, upd ...
Using Blend Physics Weight causes skeletal mesh to spin at high speed
OLD - Anim - Mar 5, 2015When Phyics Blend in the PHAT editor is set between 0 and 1, the user character will spin wildly. User has image of this affecting character in game whereas I was only able to replicate it in the PH ...
Using FEditorModeID for the "Mode" console command does not switch the modes tab
Tools - May 10, 2016Using the FEditorModeID for the different editor modes does not affect actual modes available in editor Modes tab. Example: Command "Mode EM_Foliage" does not switch to the foliage mode Workaround ...
Set All Bodies Below Simulate Physics Only Causes Ragdoll Effect if it is Set to Root Bone
UE - Simulation - Physics - Sep 29, 2017-This functions in 4.16 -Physics will only simulate if the Third Person Character bone name variable is set to root -Physics does not affect any other bone -Make sure to plug in set in collision f ...