Unreal Engine Issues
Unreal Engine Issues
Crash in DX12 UpdateTexture2D
UE - Graphics Features - Jan 24, 2017RHIUpdateTexture2D uses the wrong size for the per-row memcpy, which means we can't support passing in an offset within a larger image in the SrcData pointer (doing so will result in an access viola ...
Unconverted BP function library does not assign output parameters after function call in a nativized build.
UE - Gameplay - Blueprint - May 31, 2018Stub functions generated for unconverted assets as dependencies of nativized assets do not properly handle output parameters (the result is not assigned after the ProcessEvent() call). Suggested fi ...
Setting PHYSX_MEMORY_STATS to 1 prevents the Engine from being built successfully.
UE - Simulation - Physics - Mar 9, 2015If #define PHYSX_MEMORY_STATS 0 is set to 1, the Engine will not build successfully. The build fails with the message: error C2338: FPhysXAllocationHeader size must be less than 16 bytes. ...
Procedural Sounds Dropping First Samples
UE - Audio - Oct 26, 2015When playing a sound with the bProcedural = true option enabled. The associated sound will then drop samples when played. The licensee who originally reported the issue actually has provided a fix i ...
Construction script does not properly reset array count
UE - Gameplay - Oct 28, 2019It appears that in UE 4.23, some specific arrays in construction scripts are no longer cleared automatically and retain references to TRASH objects from the previous construction script calls. This ...
Building development version on Linux fails due to iOS folder structure
UE - Platform - Linux - Jun 26, 2017In the default Linux folder configuration, Engine/Source/Runtime/Core/Public contains two folders, iOS and IOS. The iOS folder contains the files IOSCriticalSection.h and IOSCriticalSection.h while ...
Enum Compare Condition causes crash when resetting default value of right field in State Tree's Enter Conditions
UE - AI - StateTree - Feb 11, 2026In FStateTreeCompareEnumCondition::GetDescription, the Left.Enum value is mistakingly used when setting the RightValue. This causes crashes when resetting the default value of the Right field in an ...
Persona code calling incorrect extenders when building menus.
OLD - Anim - Jan 25, 2017Certain files for building menus is calling the wrong extenders List of known conflicting functions:FSkeletalMeshEditor::ExtendMenu() [Engine\Source\Editor\SkeletalMeshEditor\Private\SkeletalMeshEd ...
When Character BP actor is rotated, "Mesh" component translation differs on Client and Server
UE - Gameplay - Apr 21, 2015Occurs in: Releases 4.7.6 CL:2510309 Main 4.8 CL:2513846 When Character BP actor is rotated, Translation is changed for "Mesh" component on Client. Server appears as expected. This isn't typicall ...
Some landscape grass instances floating when generated on AMD cards under OpenGL
UE - Graphics Features - May 15, 2015User is reporting grass at the edge of their landscape being generated floating in the air on a Mac Pro with AMD GPUs. I have been unable to repro this on my Mac Mini with Intel Graphics HD 4000. Q ...