Unreal Engine Issues
Unreal Engine Issues
Nanite culling breaks on scaled object with displacement when camera enters displacement area
UE - Rendering - Graphics Features - Nanite - Mar 9, 2026Nanite tessellation, only supports calculating displacement in local space and everything gets scaled with the object scale, which is often undesirable. If the camera enters inside the area allocate ...
LevelStreamingPersistence: BP added components don't persist properties in PIE until map actor resave
UE - World Creation - Worldbuilding Tools - Mar 6, 2026Context The LevelStreamingPersistence plugin can be used to remember and restore properties on actors, components and other objects that are part of a streamed level. Persisted properties are resto ...
Having a block in layout before switching to overlay strategy affects the overlay output.
UE - Anim - Mutable - Mar 5, 2026Issue: If "Resizable" Layout Strategy contains a block, it will influence the "Overlay" Layout Strategy. Expected behavior: When using "Overlay" Layout Strategy, it should disregard whatever the "R ...
StateTree: While editing State Parameters or exposed properties of a Condition/Task, an ensure() fires when editing inputs of a Property Function bound to an array element
UE - AI - StateTree - Mar 5, 2026Consider an array property that can be edited in the StateTree editor. This can be a State Parameter or an exposed property of a Condition or Task, for example. Each element of the array can be boun ...
Engine crashes when renaming assets inside an L10N folder.
UE - Editor - UI Systems - Localization - Mar 3, 2026The engine crashes when renaming a localizable asset inside an L10N folder. The engine attempts to associate it with the original localizable asset, but it is unable to find it and ends up accessing ...
Clear coat bottom normal does not seem to work properly with virtual textures
UE - Rendering - Graphics Features - Feb 26, 2026Clear coat bottom normal does not seem to work properly with virtual textures. Different virtual textures plugged into the material's base color can yield different clearcoat bottom normal results. ...
STAT_StaticMeshTotalMemory increases after repeated loading and unloading of a level containing Nanite static meshes
UE - Rendering - Graphics Features - Nanite - Feb 26, 2026The issue appears to be caused by a mismatch in the value returned by GetResourceSizeBytes(EResourceSizeMode::Exclusive) between InitResources() and ReleaseResources(). At InitResources(), the repo ...
Nanite displacement issue when using along non-uniform scaling
UE - Rendering - Graphics Features - Nanite - Feb 26, 2026Nanite Tessellation displacement direction is incorrect for landscapes with non-uniform scales. It seems to use the normal from the unscaled landscape, which can result in the displacement causing t ...
InvariantLeft and InvariantRight justification mispositions wrapped multi-line text
UE - Editor - UI Systems - Feb 26, 2026When a UMG Text widget is set to Auto Wrap and uses InvariantLeft or InvariantRight, the wrapped visual lines are positioned differently than expected compared to Left/Right. In the current engine ...
Skeletal mesh reimport via legacy import creates duplicate Mesh sockets
UE - Editor - Content Pipeline - Import and Export - Feb 25, 2026Reimporting a Skeletal Mesh via legacy import duplicates mesh sockets. The issue does not reproduce when using the Interchange pipeline. ...