Unreal Engine Issues
Unreal Engine Issues
Rarely, unmodified Niagara will cause diffs and bloat the patch.
UE - Niagara - May 3, 2022Attached is a project that picks up Niagara from the content sample. The probability of reproduction is about 1/10. The simpler the project, the lower the reproduction probability. I am attaching ...
FBX export from UE4 with multiple materials the UV is corrupted
Tools - Apr 18, 2016When exporting a Static Mesh from within UE4 that has multiple materials, some of the material IDs will be condensed into a single ID which will mess up how the material assignment for that part of ...
HLODs do not correctly work with Dynamic Material Instances
UE - World Creation - Worldbuilding Tools - HLOD - Jan 11, 2016A licensee has reported that when using Create Material Instance Dynamic and adjusting a material at run-time is not working with HLODs. It doesn't seem supported (yet) and unchecking the "merge m ...
The "Random Integer in Range from Stream" returns the same value if the seed is power of 2 of anything above 22.
UE - Foundation - Core - Aug 7, 2019When using the "Random Integer in Range from Stream" where the seed is a power of 2 after a certain point (2^22) the random integer that is returned is the always the same. If the seed is 2^23 + 1 i ...
When very far out from the map origin, large static mesh is not streaming in until player is close in world partition even though it's within loading range.
UE - World Creation - Worldbuilding Tools - World Partition - May 7, 2025Context World Partition has a distance-based level streaming system that provides a complete solution for large world management. Problem The problem is that when the player and large static mesh a ...
Enabling Shader compilation via XGE for 4.18 Editor downloaded from Launcher doesn't work, prevents shaders from compiling at all, editor from loading in some cases
UE - Foundation - Build - Rocket (Installed Engine) - Nov 9, 2017If you enable Shader compilation via XGE by setting r.XGEShaderCompile = 1 in ConsoleVariables.ini in 4.18 Editor downloaded from Launcher, it prevents shaders from compiling at all, and as a result ...
HiResShot in Standalone Play Not Saving Screenshots
Tools - Dec 8, 2014the High resolution screenshot is not saved when using the command 'HiResShot' when playing via the Standalone option. You can use the command and it shows the link to the directory where the screen ...
Crash when spawning multiple HISM at runtime in a packaged shipping build
UE - World Creation - Worldbuilding Tools - HLOD - Feb 25, 2021When adding multiple Hierarchical Instanced Static Meshes on a loop and packaging the project in Shipping configuration the application crashes due to LowLevelFatalError [Link Removed] [Line: 1431] ...
Android compile failure with GearVR
UE - Platform - XR - Jul 11, 2017Compiling failure from several compile errors in the output log. They're of same type like this:UATHelper: Packaging (Android (ETC2)): xgConsole: In file included from D:\Streams\UE4_Release\Engine\ ...
Physics Bodies for bones that are scaled in the Anim Graph are not scaled properly in game
UE - Simulation - Physics - Jun 14, 2016Physics Bodies for bones that are scaled in the Anim Graph are not scaled properly in game. This seems to cause a jittering effect when simulating bodies. User Description: I blend physics into th ...