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 ...
same PhysicsAsset refresh multi times when modify multi SkeletalBodySetup properties in same PhysAsset
UE - Runtime - Character - Nov 20, 2025USkeletalBodySetup::PostEditChangeProperty will call OwningPhysAsset->RefreshPhysicsAssetChange(), if I modify many SkeletalBodySetup properties in same PhysAsset, will cause call OwningPhysAsset-> ...
Setting inherited variables in child blueprint crash editor
UE - Gameplay - Blueprint - Apr 15, 2015PIE without compiling child blueprint (3rdSpiderPawn in example) that is attempting to affect an inherited variable will crash the editor. Additional Information: User has several cast to nodes ca ...
Crash using the 'Shot' Console Command after 'HighRes Shot 2'
Tools - Apr 7, 2015A crash occurs when using the 'HighRes Shot 2' command, followed by the 'Shot' command. The user reporting the issue made a couple of notes to avoid the crash using these steps. He mentions the cra ...
Having a movable directional light on an Android device, will cause the shadows to show as inverted
UE - Platform - Mobile - Feb 3, 2015If you make the Directional light in a level movable and then deploy to an Android device, the Shadows in the level will appear reversed when you glance around the level. Tested on a Nexus 5. Te ...
Atmospheric Fog placed in BP will not render in Standalone or Packaged Game
UE - Graphics Features - Jun 29, 2015Atmospheric Fog when placed inside of a Blueprint, and the BP placed in level will render correctly in PIE and Editor but will not render at all in Standalone Game, Launch or Packaged Games. This i ...
Cannot access Make MaterialSpriteElement Struc
UE - Graphics Features - Apr 16, 2015You cannot access the Make MaterialSpriteElement Struc since 4.6 when pulling off a Material Billboard Component Set Array Elem setup. In 4.5[Image Removed] In 4.7.5[Image Removed] also reproduce ...
editor crashes when variable inside of a struct is set to a class type then the object is moved to a new folder
UE - Gameplay - Blueprint - Mar 17, 2015If a struct has a variable set to a class type, then the object of that class type is moved to a new folder in the editor, the struct will replace the class type with "class", which causes the edito ...
Build crash when enabling r.CreateShadersOnLoad=1
UE - Rendering - Architecture - Shaders - Nov 10, 2025When "r.CreateShadersOnLoad" is enabled, cooking will crash due to failure to create a shader. This occurs on //UE5/Release-5.5, CL: 41545209 and //UE5/Release-5.6, CL: 45232827 ...
The LightMixer window is making all scene lights visible once you toggle the visibility of a single light
UE - CAPT - Tools - Jul 31, 2025The LightMixer window is making all scene lights visible once you toggle a single light as visible. Any light source (except SkyLight) will be turn visible once a single light is made visible using ...