Unreal Engine Issues
Unreal Engine Issues
GetAllMobileRelevantLayerNames drops those layers which are only connected to RuntimeVirtualTextureOutput Node
UE - Graphics Features - May 6, 2021in UMaterial::GetAllReferencedExpressions, the mobile branch ignores every CustomOutputExpressions including RuntimeVirtualTextureOutput. ...
Ensure after reparenting Blueprint and moving a property to the new parent
UE - Gameplay - Blueprint Editor - Jul 20, 2023Moving a property from a recently reparented BP to its new parent will assert in FBlueprintCompileReinstancer::MoveDependentSkelToReinst at ensure(PrevStructSize == NewStructSize) This only see ...
A niagara emitter with an empty renderer module does not return a position in the package
UE - Niagara - May 11, 2022FBX import freezes in DataPrep
UE - Editor - Content Pipeline - Visual Dataprep - Mar 3, 2025FBX file import freezes UE while trying to import into DataPrep by the Interchange importer. The import will start, but then a message will pop up stating "Creating snapshot of world content ... " ...
Unreal Editor can get in an infinite while loop when checking the History of an asset under Perforce.
UE - Editor - Workflow Systems - Oct 21, 2024Unreal Editor can get in an infinite while loop when the action Asset->Source Control->History is used in a Blueprint Asset. Reportedly, this issue is only encountered when using the Branches featur ...
GameCenter does not login on Match3 startup on iOS
UE - Platform - Mobile - Aug 23, 2016When launching on or opening a packaged UnrealMatch3 project GameCenter does not login for the paired account. This causes Leaderboards and Achievements to appear blank. Tested on iPhone6s_6240 OS: ...
Crash after changing either the Anim Start or End times of an Animation Composite
UE - Anim - Runtime - Jul 19, 2022This is a regression tested in //UE4/Release-4.27 CL#18319896 Crash after changing either the Anim Start or End times of an Animation Composite when using Enter to confirm their value. ...
Crash with SceneCapture DepthPrepassOptimization enabled
UE - Rendering - Architecture - May 22, 2026Level asset "Diff against depot" opens P4 Merge tool
UE - World Creation - Worldbuilding Tools - Mar 1, 2024You can right click a level asset in the editor's Content Browser and do the action Source Control > Diff against Depot. However, this does not provide a useful diff window. It currently opens the d ...