Unreal Engine Issues
Unreal Engine Issues
Recompiling an ABP that another ABP has a Property Access dependency on without recompiling/linking the other causes a crash
UE - Anim - Runtime - Anim Blueprints - Oct 2, 2025The crash comes from the pointers in FAnimSubsystem_PropertyAccess::Library::Indirections in the layer ABP from pointing to old/invalid functions and properties from the trash ABP_Manny, as they hav ...
Editor Crashes When Attempting to Open Material Function
UE - Rendering Architecture - Materials - Jun 2, 2017The editor is crashing when trying to open a material function that the user provided. User Quote: One of my material functions crashes the engine when I open the editor for it. It works fine, I ...
Performing a hot reload on a project that contains an FStringAssetReference will crash the Editor.
UE - Foundation - Core - Mar 10, 2015Performing a hot reload on a project that contains an FStringAssetReference inside a struct results in a crash. This was reported to work fine in 4.6.1, but I was unable to verify that is the case. ...
Package fails after adding DesktopPlatform to public module dependency list
UE - Foundation - Core - Apr 6, 2017Adding DesktopPlatform to the PublicDependencyModuleNames.AddRange() section of the Project.Build.cs file causes the project to fail packaging with the following error (full package logs in callstac ...
Crash when launching Google VR project
UE - Platform - XR - Dec 12, 2016Attempting to launch a packaged Google VR game on android causes the game to crash. This has occurred on two other devices. This occurs in Main as well as Dev-VR. ...
Crash when creating StaticMesh repeatedly
Tools - Nov 21, 2014UE4Editor crashes when creating static meshes. Event at startup time while it tries to create default object it crash sometimes. ...
SingleLayerWater Material crashes when sampling SceneTexture:CustomStencil.
UE - Rendering Architecture - Shaders - Sep 19, 2024There is a texture mismatch between the expected texture samplers and actual texture samplers for SingleLayerWater materials that use the Material Function StencilMaskCompare. Also tested on UE5.5, ...
Assertion trying to open packaged project on Linux: Default__MaterialInterface was listed as a fixed load order but was already processed
UE - Foundation - Core - Feb 20, 2017This might be related to [Link Removed]. ...
iOS package with Metal Desktop Renderer enabled crashes on iPhone
UE - Rendering Architecture - RHI - Oct 11, 2024iOS package with Metal Desktop Renderer enabled crashes on iPhoneThis issue does not occur if Metal Desktop Renderer is disabled ...
Crash occurs when trying to edit a MetaSound Source asset while a MetaSound Source object is referenced utilizing FObjectFinder in C++
UE - Audio - MetaSounds - Apr 14, 2022Crash occurs when trying to edit a MetaSound Source asset while a MetaSound Source is referenced utilizing FObjectFinder in C++ Repro Rate: 3/3Fatal error: [File:D:\build\++UE5\Sync\Engine\Source\R ...