Unreal Engine Issues
Unreal Engine Issues
Certain particle effects in ContentExamples pause when looked at on Mac with Metal
UE - Platform - Apple - Aug 20, 2016Certain particle effects in ContentExamples stop playing when looked at from a specific angle. The affected demos are 2.1, 2.4, 2.5, and 2.7 Seen on an Nvidia MacbookPro and AMD MacPro Does not o ...
Make Lidar Point Cloud Point Node has had the Location input change from a Vector to a Vector 3f
UE - Gameplay - Oct 12, 2022Tested in: //UE4/Release-4.27 CL 18319896 Input pin was of type Vector //UE5/Release-5.0 CL 20979098 Input pin was of type Vector 3f //UE5/Release-5.1 CL 22346211 Input pin was of type Vector 3f Th ...
Can not affect "r.SetRes" command in editor new window
UE - Core - Systems - Jul 11, 2022When playing in "New Editor Window" mode, entering the r.setres command does not change the screen size. This worked in UE4.27, but no longer works in UE5.0. ...
Editor crashes on start up after updating to 5.0 - Assertion failed: (TTraits::WithIdentical || TTraits::WithIdenticalViaEquality) [File:E:\UnrealEngine\UE_RelTestA\Engine\Source\Runtime\CoreUObject\Public\UObject\Class.h] [Line: 1476]
Quixel - Apr 6, 2022User's are reporting that after updating to 5.0 the editor crashes on start up. This happens when converting an old project, creating a new project, or attempting to open a project. Some are reporti ...
UEditorValidatorBase::ValidateLoadedAsset() is not using the K2_ValidateLoadedAsset() output, effectively ignoring the Blueprint validation
UE - Editor - Open File Formats - May 1, 2025UEditorValidatorBase::ValidateLoadedAsset() is not using the K2_ValidateLoadedAsset() output, effectively ignoring the Blueprint validation. The K2Result is not used later in the function, and this ...
Crash when interacting with an Actor containing an Instanced Static Mesh that is in a Locked level
UE - Editor - Mar 30, 2023This is not a regression. Tested in //UE5/Release-5.1 CL23901901 Editor crashes with an assertion after interaction with an Instance Static Mesh component that is in a locked level. This doesn't af ...
[Quartz] - Playing a Force Inline SoundWave asset with PlayQuantized crashes editor
UE - Audio - Aug 17, 2023Calling PlayQuantized on an asset set to Force Inline crashes editor:Assertion failed: SoundWaveDataPtr->GetLoadingBehavior() != ESoundWaveLoadingBehavior::ForceInline [File:D:\SMoyls_UE5_Release-5. ...
Block noise on particles/skeletal meshes when launched onto certain Android devices
UE - Platform - Mobile - Oct 12, 2016When launching particles and skeletal meshes on certain devices, they create block noise pixels instead of a smooth flame for example. Regression: Yes Did not occur: Binary 4.12.5-3039270+++UE4+Rel ...
Precomputed lighting is not saved when using Save As or Duplicate for levels
UE - Graphics Features - Sep 30, 2016Lighting is invalidated with levels that have been duplicated or Saved As. The maps that are created are immediately marked dirty and need to be resaved vs how they were in 4.12.5 where they wouldn' ...
Niagara - When editing a Niagara Function or Module Script, the "Apply" button on the toolbar never gets disabled if "expose as pin" is checked on any static switch node.
UE - Rendering - Architecture - Niagara - Apr 7, 2025Consider a Niagara Function or Module Script containing a Static Switch node. If the "Expose as Pin" option is enabled for its selector variable, the "Apply" button on the graph editor's toolbar wil ...