Unreal Engine Issues
Unreal Engine Issues
BP nativization emits incorrect C++ code for noexport-typed struct field access in some cases.
UE - Gameplay - Blueprint - Dec 18, 2019In BlueprintCompilerCppBackendUtils.cpp: #define MAP_BASE_STRUCTURE_ACCESS(x) \ BaseStructureAccessorsMap.Add(x, TEXT("#x")) Needs to be changed to: #define MAP_BASE_STRUCTURE_ACCESS(x) \ ...
Suspend/resume iOS Metal Crash on low end device with MTLCommandBufferErrorMemoryless error with lots of geometry
UE - Platform - Mobile - May 11, 2023The project was built in Unreal 4.27.2 binary from the Epic Games Launcher. At this stage we have only observed the crash on devices with a hardware combination of Apple A9 1.8 GHz and 2GB of Memory ...
Cannot build project for the Development configuration after adding a new UFactory code class
Tools - Apr 13, 2018Adding a new custom UFactory code class to a project results in no longer being able to build the project for the Development configuration. Prior to adding the UFactory code class the project can b ...
Adding a code class derived from AnimInstance to a project created using the code Vehicle template will cause the Visual Studio build to fail.
UE - Gameplay - Dec 1, 2014Adding a new code class derived from AnimInstance will cause the Visual Studio build to fail in a project based on the code Vehicle template. The build errors indicate that there are problems in the ...
[CrashReport] Crash on Mac - UE4Editor-Slate.dylib!FTextLayout::GetAsTextAndOffsets()
UE - Platform - Apple - Jul 17, 2017This is a common crash occurring for Mac users on the 4.17 Preview, and a few cases in 4.16. I have been unable to find any matching reports of this crash on Windows. There is a slight variation in ...
BP - Exclusive nativization will fail at cook time if an Actor BP class enabled for nativization includes a Component BP that's not enabled for nativization in its component list.
UE - Gameplay - Blueprint - Apr 26, 2017This happens because the Blueprinted component is not also enabled for nativization, but the nativized Actor BP tries to use it as a native class type. Current workaround: Ensure that the Blueprint ...
Adding specific map to project crashes editor
UE - Gameplay - Dec 23, 2015Adding map from user's project, CityofEther.umap, crashes editor upon launch or attempting to open the map. Crashreporter: [Link Removed] ...
GAS: Initial OnRep_SpawnedAttributes from DefaultStartingData clears attribute values for already replicated ActiveGameplayEffects
UE - Gameplay - Gameplay Ability System - Oct 23, 2024Context The property 'DefaultStartingData' in AbilitySystemComponent can be configured from blueprint to spawn default attribute sets. This happens OnRegister. For runtime spawned actors like pawns ...
Crash occurs after pausing and unpausing cinematic after restart level
UE - Platform - Apple - Oct 10, 2016This was tested on Windows the crash does not occur. This crash also occurs on Matinee cinematic as well, but only when you ~ quit the standalone game. ...
Compsure crashes when reordering transform passes
UE - Graphics Features - Aug 10, 2020Re-ording the Transformpass array results in a crash of the engine. Link to repro video: [Link Removed] ...