Unreal Engine Issues
Unreal Engine Issues
No sound plays when using Built-In Spatialization or Simple ITD plugins
UE - Audio - Spatialization - Nov 10, 2021No audio can be heard when using the Built-In Spatialization plugin. This is a regression from 4.26. Occurs in 4.27 and 5.0. ...
Mesh Paint mode's Texture Paint has obvious artifact with UV seams
UE - Rendering Architecture - Oct 8, 2024Mesh Painting Texture Paint tool can miss some pixels along UV seams, even with "Enable Seam Painting" set to True. This appears to be because of the difference between rasterization and sampling. ...
TInstancedStruct used in native actor class loses reference to Instanced UObject after BP recompilation
UE - Foundation - Jun 25, 2025When a TInstancedStruct contains a UObject marked with EditInlineNew and DefaultToInstanced, the reference is lost after compiling the Blueprint but only when the struct is part of a native Actor cl ...
Grass draws on landscape holes
UE - LD & Modeling - Terrain - Landscape - Jul 14, 2015Grass output in materials draws over masked locations, such as landscape visibility holes. ...
Destructible component doesn't register hit event with Landscapes
UE - Simulation - Physics - Destruction - Aug 9, 2016Destructible component doesn't register hit event with Landscapes. The only way to get the Destructible to register the event is to enable Impact Damage on the Destructible mesh. User Description: ...
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 ...
Material re-route nodes break TextureSample output
UE - Rendering Architecture - Materials - May 4, 2017This is a bug found by a licensee ...
Crash while scrolling through language options in Packaging settings
Tools - Jul 21, 2017This is a trending crash in the 4.17 preview. This is a regression Broken: 4.17.0-3528061 Worked: 4.16.2-3514769 User Descriptionsproject/settings/intern..language. Crashed it just by scrolling t ...
Invalid Subsurface Scattering Color when using Per Pixel Shading Model and non-default material layers
UE - Graphics Features - Sep 27, 2022It appears as though when adding material layers to a material instance that uses the FromExpression shading model, the subsurface color ends up white. If you add a DebugFloat3Values and output it t ...