Unreal Engine Issues
Unreal Engine Issues
Nanite mesh shadows not updating when CSMCaching enabled
UE - Platform - Mobile - May 25, 2024A Nanite primitive casting a CSM shadow on another Nanite primitive with "Cast Shadows" disabled, will have it's shadow disappear completely when r.Shadow.CSMCaching = 1. ...
Poor Vulkan RHIThread performance in Development builds on some Android
UE - Platform - Mobile - Dec 10, 2024Community-attempted workaround received in [Link Removed] Correct fix submitted to 5.6 FNMain in [Link Removed] which needs integrating into 5.5.3. ...
[Interchange][FBX] Import model with custom collision prevents socket to be imported
UE - Editor - Content Pipeline - Import and Export - Feb 5, 2025I would like parity with legacy: 1) only one material 2) socket to be imported Box_Socket file imports same in legacy and interchange: it is just box and socket without collision. ...
UDN Bug: ASTC compression becomes greyscale
UE - Anim - Mutable - Feb 13, 2025Bug reported at https://udn.unrealengine.com/s/question/0D5QP00000tOpXN0A0/using-mutable-plugin-results-in-greyscale-textures-on-android-xr?fromCase=1 ...
Base materials in exported Datasmith files imported into Unreal Engine are missing material function.
TM - Interoperability - Nov 19, 2024Datasmith imports in UE do not render materials due to missing material function. Works in UE 5.6 main but not UE 5.5 or 5.4 ...
Volume artifacts (Bleeding)
UE - Graphics Features - May 31, 2023GlobalShaderCache file is missing when Direct X 11 SM5 is disabled for packaging
UE - Graphics Features - Nov 16, 2016When trying to launch a .exe after disabling SM5 in the project settings, an error will appear. The global shader cache file ../../../../Engine/GlobalShaderCache-PCD3D_SM5.bin is missing. ...
Adding a Structure BP parameter with a Enum BP as a member to a Niagara Module Script crashes the engine
UE - Niagara - Apr 6, 2022Adding a parameter of type structure bp which references an enum as a value to a module script crashes the engine. This issue is also occurring in 4.27. ...
Set Morph Target not being sent to children of Inherited Mesh
OLD - Anim - Sep 4, 2015In previous versions of UE4, Set Morph target to call the Inherited Mesh and would result in any children of the Inherited Mesh that shared that morph target name to morph. In UE4.9 this no longer ...
Crash when removing Blueprint function
UE - Gameplay - Blueprint Compiler - Apr 23, 2018The Editor crashes whenever the reference to the "DeleteThisFunction" function is deleted. ...