Unreal Engine Issues
Unreal Engine Issues
Exported Morph target Animation sequences behaves differently in Max or Maya vs in UE4
UE - Editor - Content Pipeline - Import and Export - Sep 2, 2019After invested, noticed that the exported morph target animation generated two separated Morph Modifier for each individual Morph Target in Max to achieve the final result instead of using only one ...
Significant hitch occurs when invoking ApplySettings on a UGameUserSettings object
UE - Graphics Features - Jun 18, 2025Calling the ApplySettings method on a UGameUserSettings object results in a noticeable hitch, with severity proportional to the number of primitive components present in the scene. This hitch stems ...
Motion Controller tracking appears to be offset with the Vive while moving
UE - Platform - XR - Jan 10, 2017The tracking for objects that are attached to a Motion Controller appear to be offset when the pawn is moving. The object appears to become offset and appears to orbit around its original position. ...
Unable to open Unreal Engine after cleaning project in XCode
UE - Platform - Apple - Aug 31, 2020When I have the Epic Games Launcher open as I clean the Xcode project, the top right button will still read "Launch." Clicking on it after the Xcode project is finished cleaning causes the following ...
lots of wasted Volumetric lightmap samples
UE - Graphics Features - Lumen - Jun 20, 2019Expectations: The samples should only surround the lightmass importance volumes. Imagine if we build a 8K*8K map with lightmap importance volume at the corners of the map, even using stream levels ...
Unnamespaced UnrealMathUtility.h macros clash with other headers
UE - CoreTech - Jan 25, 2022Reported here: [Link Removed] > See this commit: > > https://github.com/EpicGames/UnrealEngine/commit/acd754e12dc9a7ffc7f173c8433a6bafc0262b51#diff-b18d4f9b879748fdacff2caa885b231e8c9e0b899d90d5d ...
Volumetric Translucent Shadows will only work if you select the mesh, doesn't show up in game
UE - Graphics Features - Aug 18, 2015When using Volumetric Translucent Shadows for static meshes the shadows will only work if the mesh is selected. When the mesh is deselected it will not render. This worked in 4.8.3, but is broken ...
[CrashReport] UE4Editor-Slate!FSlateApplication::OnMouseUp(EMouseButtons::Type,FVector2D) [SlateApplication.cpp:5321]
UE - Anim - Rigging - Feb 15, 2021Generated from CrashReporter User information:Tried to choose f_med_brw_body_skmesh for the retargeting pose as mentioned at: https://docs.unrealengine.com/en-US/Resources/Showcases/MetaHumans/Reta ...
Performance drop when spawning AI actors during runtime compared to placing them in world
UE - AI - Jan 9, 2019There is a performance difference between spawning and placing AI into a level. This is causing issues when spawning/despawning AI actors in a large open world, where 4-5ms of frame time quickly bui ...
File > Package > Desktop (Win+Mac+Linux) redirects user to the main Docs Splash page
Docs - Apr 18, 2018When attempting to use the "All Desktop" packaging functionality, in the editor, the user is redirected to the main splash page for UE Documentation: https://docs.unrealengine.com/en-us/ I do belie ...