Unreal Engine Issues
Unreal Engine Issues
Check the status of an issue or Search for an existing issue.
SetInputMode_GameOnly + windowed mode: Win+Arrow window snapping stops working after dragging window across monitors on multi-display setup
UE - Editor - UI Systems - SlateWhen SetInputMode_GameOnly is applied on a PlayerController and the application runs in windowed mode on a multi-monitor setup, the Windows OS...
VSM shadows are missing for non-Nanite meshes in a PPV where Megalights is disabled, but Megalights is enabled in the project
UE - Rendering - Graphics FeaturesIn UE 5.8 r.Visibility.LocalLightPrimitiveInteraction mode 2 (enabled if MegaLights is disabled) was added and made the new default as a perf...
Deadlock while cooking groom bindings
UE - Anim - MutableHi, we are experiencing random deadlocks while cooking groom bindings. We have integrated 5.8 mutable into 5.6 and are still experimenting tho...
Crash in GC - FSharedStruct reachability race condition
UE - CoreTechThis Jira was created from the linked EPS case: =============================================== This issue is caused by FSharedStruct batch...
Regarding TObjectPtr performance regression
UE - CoreTech - UObjectThis is from the linked EPS case: ============================== When 5.0 first introduced TObjectPtr, the guidance was that it would compi...
World is initialized twice when opened through the Content Browser
UE - World Creation - Worldbuilding ToolsWhen opening a Level from the Content Browser, the world gets initialized twice. This initialization process can be quite long, especially for...
Parameter metadata not accessible if modified in Material Instance and then converted to CustomPrimitiveData
UE - Rendering - Architecture - MaterialsThere’s a potential issue with some changes we made to UMaterialInstance::GetParameterValue (https://github.com/EpicGames/UnrealEngine/commit/...
Rare crash in FWidgetAnimationState::OnStopped
UE - Anim - SequencerThe FWidgetAnimationState::OnStopped delegate is getting created when the widget anim state is being destroyed and then queued to be executed ...
Mutable Dataless Generation - Regenerate Imported Models Crash
UE - Anim - MutableCrash when working with Dataless Mutable content. When selecting meshes in the instance, there is a crash in RegenerateImportedModels....
Nanite Skeletal Mesh ignores Hidden Material Section flag
UE - Rendering - Graphics Features - NaniteUnlike non-Nanite Skeletal Meshes, Nanite-enabled Skeletal Meshes do not correctly respond to the Show flag passed via ShowMaterialSection(). ...