Unreal Engine Issues
Unreal Engine Issues
Some Niagara Fluid systems are not visible in a packaged project
UE - Rendering - Architecture - Niagara - Jun 7, 2022Previously packaging caused a crash with this system. This was fixed, but now the system is no longer visible when packaged. ...
Route gamepad to second window setting is broken
UE - Gameplay - Input - Nov 11, 2022The RemapControllerInput function call likely needs to be added back to the game viewport client as a fix. ...
CreatePatchLibrary is broken
UE - Rendering - Architecture - Shaders - Nov 12, 2025It seems the FEditorShaderCodeArchive.LoadExistingShaderCodeLibrary missed some functions, use FEditorShaderCodeArchive.AddShaderCodeLibraryFromDirectory instead could fix the issue. ...
Local Vector variables in functions do not save the Y and Z values
UE - Gameplay - Blueprint - Mar 12, 2015Local Vector variables in functions do not save the Y and Z values. Possibly connected: after entering the X value, pressing Tab does not move to the Y value. Tabbing from there works as expected. ...
View Distance sorting of Niagara sprites is incorrect when far from the origin
UE - Rendering - Architecture - Niagara - Jan 15, 2024This problem seems to occur on both CPU and GPU Sims. ...
Crash on Assigning Material to Element 1 in Reimported Static Mesh
Tools - May 15, 2015[Link Removed] When you reimport a Static Mesh with an Added Material ID associated with it and in the Static Mesh Editor assign a material, the engine crashes. Also reproduced in Main Promotable- ...
Retarget manager missing scroll bar
OLD - Anim - Apr 6, 2017REGRESSION: Yes, does not occur in 4.15 In the Retarget Manager, the scrollbar for the Set up Rig section is missing. ...
Compile error building UE4 Solution "Cannot open include file: 'maya/MObject.h': No such file or directory"
OLD - Anim - Apr 19, 2017Compile failure building the MayaLiveLinkPlugin project in the UE4 solution. Not a regression as this project did not exist in 4.15 ...
Hot reload iteration time regression.
UE - Foundation - Core - Oct 19, 2017Hot reload iteration times have been crippled ever since CL# 3332960, which was a fix for [Link Removed]. ...
InstancedStaticMeshes disappear in Shipping builds on mobile when affected by dynamic point lights
UE - Platform - Mobile - Aug 22, 2019This ticket is to add the safe workaround for 4.23.1, with a more optimal fix coming in 4.24. ...