Unreal Engine Issues
Unreal Engine Issues
UE Editor 5.3 - Level Viewport - Unlocalized Issues
UE - Editor - Jun 23, 2023How to Reproduce: 1. Open Editor 5.3 (ReltestB) in Localized version (culture= ) 2. Click on the "show" icon in the level viewport 3. Navigate to the following locations in the Show menu and observ ...
Updating project to 4.12 corrupts Additive AimOffset thumbnail, causing log spam
OLD - Anim - Jun 6, 2016Updating project to 4.12 corrupts Additive AimOffset thumbnail, causing log spamLogAnimation:Warning: Setting an additive animation (Owen_AimOffset) on an AnimSingleNodeInstance is not allowed. This ...
Option "Always load last project on startup" is broken on UE 5.3
UE - Editor - Dec 9, 2023In UE 5.3, when the option "Always load last project on startup" is enabled and a new Editor launch attempts to automatically reopen the last closed project, the dialog "The following modules are mi ...
UbaAgent in 5.7 depends on qwave.dll, which is not available on Server Core
UE - Foundation - Cpp Tools - UnrealBuildAccelerator - Nov 19, 2025A licensee runs UbaAgent on Windows Server Core. This worked in 5.5 and 5.6, but broke in 5.7. After some investigation, they found that UbaAgent took a new (hard) dependency on qwave.dll in order ...
Material Parameter Collection Track doesn't work in UMG Preview from 5.7
UE - Editor - UI Systems - UMG - Feb 12, 2026The UMG editor allows us to add a Material Parameter Control track to an animation. This track makes it possible to animate parameters used in a material. Designers can scrub the timeline and previe ...
Foliage Instance Static Meshes do not affect the Navmesh
UE - AI - Navigation - Apr 25, 2022Foliage Instance Static Meshes do not affect the Navmesh. I tried changing the Custom Navigable Geometry to 'Yes' & 'Even if Not Collidable' but got the same results. Repro Rate: 4/4 Tested this i ...
[MetaSounds][Wave Player] - 5.1 Wave Player channel output maps differently for Vorbis than other codecs
UE - Audio - MetaSounds - Aug 16, 2023The channel output for 5.1 Waveplayer on MetaSounds is different when Platform Default (Vorbis) codec is chosen on Windows Platform Default - L, C, R, LS, RS, LFEBink, PCM, ADPCM - L, R, C, LFE, LS ...
[CrashReport][GPUCrash] UpdateRadianceCaches
UE - Rendering - Graphics Features - Ray Tracing - May 19, 2025#31 crash out of 7783 in UE 5.7.4 on Windows#3 crash for UE - Rendering - Graphics Features in UE 5.7.4 on Windows#1 crash for UE - Rendering - Graphics Features - Ray Tracing in UE 5.7.4 on Windows ...
Destructible meshes always affect navigation regardless of collision
UE - AI - Jan 27, 2016Turning off a destructible mesh's collision will still affect navigation around the destructible mesh Note: This issue is related to [Link Removed]. The workaround for that issue does not apply he ...
Drag coefficient on vehicle blueprints affects forward and reverse differently
UE - Simulation - Physics - Mar 31, 2016Drag coefficient on vehicle blueprints affects forward and reverse differently. If in reverse, it seems to be additive or multiplicative to the vehicle's movement as opposed to providing any resista ...