Unreal Engine Issues
Unreal Engine Issues
Spot Light USD Export Produces Incorrect Intensity Values Based on Cone Angle and Source Radius
UE - Editor - Content Pipeline - USD - Apr 3, 2026UPDATE: Should be fixed as of CL#52537078 (fb7af1) USD: Bake all frames of exposure animation tracks. When exporting Unreal Engine spot lights from a level to USD, lights with identical EV intensit ...
Distance Field shadow culling when view is at certain angles
UE - Graphics Features - Aug 4, 2015Distance Field shadows are culled for larger meshes at certain angles of the cameras view position. Map with reproduced setup is attached. ...
Landscape Layer Blend Nodes Improperly Update when Input Pins are Changed from Weight/Alpha to Height Blends
UE - LD & Modeling - Terrain - Landscape - Jun 3, 2015Landscape layer blend nodes do not properly update input pins when layer pins are changed from alpha/weight blends to a height blend if the pins are populated during the change. ...
Cross-Compiling for Linux-ARM fails to compile
Tools - Aug 11, 2015Following the directions on the wiki for cross compiling on Linux ([Link Removed]) fails when trying to package the project. ...
Setting meta data to custom MetaData class does not save after restarting editor
OLD - Anim - Apr 8, 2016When setting a custom meta data class in an Animation Montage, the class set is not saved when the editor is closed / reopened. ...
Local Exposure can cause large variations in PreExposure under certain conditions
UE - Rendering - Graphics Features - Sep 16, 2025PreExposure is influenced by LocalExposure in PostProcessEyeAdaptation.cpp:1265. It appears when the scene is particularly dark and using manual exposure, the LastAverageLocalExposure can read a lar ...
Message box cannot be closed after accessing the home screen on iOS
UE - Platform - Mobile - Mar 15, 2016Returning to home screen with message box displayed prevents the message box from being closed upon returning to the game ...
MoviePipeline Project Settings can't refer to Plugin classes
UE - Anim - Sequencer - Feb 12, 2022A workaround might be to use the CDO of your plugin to reach out to the Editor settings and assign itself to the fields you want. This removes the users ability to choose between multiple options. ...
The collision of objects moving at high speeds seems to move in front of the object
UE - Simulation - Physics - Mar 9, 2015The collision of objects moving at high speeds seems to move in front of the object. The faster the object is moving, the further the collision will be from the mesh. AnswerHub report: https://an ...
Some texture files cannot be exported from the editor
Tools - Feb 4, 2015There are instances where some texture files cannot be exported from the editor. In this older post a user had reported this with the file T_Sky_Blue from the engine folder. Only this file has been ...