Unreal Engine Issues
Unreal Engine Issues
Pawn Velocity dramatically different on server and client with Client Authoritative Position
UE - Gameplay - Sep 28, 2018The server is not seeing the correct walking animations on each of the clients and after doing some digging, we found that the Pawn->GetVelocity() function is returning something drastically smaller ...
Lightmap Density Of Imported FBX Offsetting When Lighting Is Built
UE - Graphics Features - Oct 8, 2018Lightmap density of imported fbxs will be offset when lighting is built. Working as expected in 4.19 CL# 4033788 Found in 4.20 CL# 4369336, 4.22 CL# 4433008 This is a regression ...
Duplicate Physics replication call in PhysScene_PhysX.cpp
UE - Simulation - Physics - Nov 27, 2018There is a duplicated block of physics replication code in PhysScene_PhysX.cpp https://github.com/EpicGames/UnrealEngine/blob/release/Engine/Source/Runtime/Engine/Private/PhysicsEngine/PhysScene_P ...
HighResScreenshot crashes in windows packaged exe
UE - Rendering - Architecture - Mar 22, 2023FHighResScreenShotConfig::Init() sets the materials only in the Editor, due to a #if WITH_EDITOR block. However, the FViewport class exposes the TakeHighResScreenShot to non-editor builds as well, l ...
GeometryScript: BlueprintCallable GetMaxMaterialID return pin is incorrectly named "Enabled" instead of "MaxID"
UE - Graphics Tools - Modeling Tools - GeometryScripting - May 2, 2025The return pin for the "Get Max Material ID" function is incorrectly named "Enabled" when the function returns the MaxID. See \Engine\Plugins\Runtime\GeometryScripting\Source\GeometryScriptingCore\ ...
Loading Duplicated Level via Python API Crashes Editor
UE - Editor - Feb 16, 2023When called from Python, in 5.1 the load level invocation results in a kernel panic style crash of the editor, with a message about the map leaking memory and not being able to be garbage collected ...
Ensure triggers when undoing change to newly created variable
UE - Gameplay - Blueprint - Sep 28, 2018Ensure will trigger when undo reverts text to default value. "This triggers an ensure because the undo ends up calling SKismetInspector::ShowDetailsForObjects(), which forces the keyboard focus to ...
Setting max undilated frame time to a negative value crashes the editor
UE - Gameplay - Apr 6, 2018In the world settings of any level, changing the max undilated frame time to a negative number results in the editor crashing. ...
AHUD::DrawMaterialSimple does not render on ANdroid device when MobileHDR is disabled
UE - Platform - Mobile - Oct 23, 2015After cooking, If user installs same project which contains drawing material via DrawTile function in HUD, is not displayed in es2, with MobileHDR off (verified on android device) DrawTile script i ...
Merge an actor that contains Instanced Static Mesh components will reset to 0,0,0
UE - World Creation - Worldbuilding Tools - HLOD - Jan 31, 2017Merge an actor that contains Instanced Static Mesh components will reset to 0,0,0. The Instanced Static Mesh components must be set using the Add Instance node through the Construction Script for th ...