Unreal Engine Issues
Unreal Engine Issues
USD Stage - Import loses UV on a skeletalmesh with animation
UE - Editor - Content Pipeline - USD - Apr 28, 2026https://forums.unrealengine.com/t/usd-import-issue-when-trying-to-import-skeleton-with-animation/2718449 I put another png has the user forgot to add theirs. ...
"Move Selection to Current Level" can duplicate actors when cancelling
UE - Editor - Workflow Systems - Apr 17, 2026When moving an Actor that is referenced in the source level, UEditorEngine::CopySelectedActorsToClipboard will try to select the Actor for delete which will pull the \"Delete Referenced Actor\" dial ...
ServerUpdateLevelVisibility called multiple times from UWorld::AddToWorld/RemoveFromWorld due to child connections
UE - World Creation - Worldbuilding Tools - World Partition - Apr 16, 2026A recent change to ULevelStreaming::ServerUpdateLevelVisibility ensures that this only calls APlayerController::ServerUpdateLevelVisibility once for any non-child connections ( ...
Deadlock during cooking or editor in URigHierarchyController::AddElement on task thread while GarbageCollection occurs on gamethread.
UE - Anim - Runtime - Apr 15, 2026In URigHiearchyController::AddElement (and other functions), arbitrary delegate code is called while holding Hierarchy->ElementsLock, through the Notify function. URigHierarchy::AddReferencedObject ...
Registration Export: Image Export Overwriting
RS - Alignment - Apr 13, 2026When exporting a registration (e.g., for COLMAP), RealityScan exports all images into a single image folder. If the source dataset contains images with identical filenames located in different subfo ...
When using the WebBrowser plugin, Korean input does not work if you type in a different input field from the one that was first used on Google.
UE - Editor - UI Systems - Slate - Apr 7, 2026In the updated search box, Korean text may not be entered initially. As a workaround, switching to another window using Alt+Tab (or activating a different window) and then returning to click the sea ...
[StateTree] Cannot use SetLinkedStateTreeOverrides if the linked asset uses the same schema with a parent context data class of the root tree.
UE - AI - StateTree - Apr 3, 2026If both assets have the same schema (StateTreeComponentSchema), but the root tree has the Context Actor class set to Character and the linked asset is using a Context Actor class of Pawn. So the sch ...
Mutable: Child parameters hidden when intermediate Object Group uses "All Options"
UE - Anim - Mutable - Mar 31, 2026FCustomizableInstanceDetails::FillChildrenMap() unconditionally registers parent-child relationships via __ParentParamName metadata without verifying the parent exists in the active parameter list. ...
Mesh Reshape node with modified geometry from another skeleton explodes mesh.
UE - Anim - Mutable - Mar 31, 2026Using the mesh reshape node with seperate meshes produces a broken mesh. An example project: Most if not all clothes will be originally made to fit the Average Male body. I'm trying to morph a tu ...
CSM Cached Shadows missing when changing FOV
UE - Rendering - Graphics Features - Shadows - Mar 30, 2026When changing the camera FOV with r.Shadows.CSMCaching enabled, the cached shadows don't appear to be used and shadows are missing. This occurs because the r.Shadow.RadiusThreshold can be low enoug ...