Unreal Engine Issues
Unreal Engine Issues
Loops don't work with SimpleParallel BT composite node
UE - AI - Dec 16, 2014Loop decorators don't work with SimpleParallel BT composite node. We need to either fix it, or if we remove support for it restrict users from putting these decorators on SimpleParallel's children. ...
Objects with QueryOnly collision push Physics objects
UE - Simulation - Physics - Jul 8, 2015From UDN: We are having an issue where a cube physics actor simulating physics is being pushed around by a characters character mesh while walking around on top of it. If i set the character mesh ...
Blueprint actor reference breaks after hot reload
UE - Gameplay - Blueprint - Apr 21, 2016Reference to a blueprint based on a custom class will break if changes are made to the parent class and a hot reload is performed. Error Displayed added to Callstack section. Workaround: Compiling ...
Behavior tree subtree switch reported as hitching
UE - AI - Apr 4, 2016Setup described in UDN post: parent tree: root - selector - run behavior task subtree: root - sequence - custom BP task with just print string repro: print string message (engine tick) is showing u ...
Showing black screen when drawing Distortion and DOF on Android
UE - Platform - Mobile - Jan 13, 2019[Link Removed]I think it is because that the "bOnChipSunMask " is false as Distortion activated (MobileShadingRenderer.cpp line 378), the "UseFetch" is true as the Android device support shader fra ...
Crash when converting a Landscape to a Blueprint Class
UE - LD & Modeling - Terrain - Landscape - Aug 12, 2020The Editor crashes when attempting to convert a Landscape into a Blueprint Class. Looking back to //UE4/Release-4.24 cl 11590231, this option seems to be unselectable (see attached image), which lea ...
LiDAR plugin crashing with VR Instanced Stereo enabled
UE - Platform - XR - Jan 26, 2023When enabling LiDAR plugin with VR Instanced Stereo enabled it causes a crash. Alternate repro: From Any project Enable Instanced Stereo in project settings Enable LiDAR Point Cloud Support Restar ...
Post Process Ambient Cubemap Tilted
UE - Graphics Features - Nov 11, 2014User imported a custom image in the correct format to be used as an Ambient Cubemap within the Post Process Volume. Enabled detailed lighting mode by pressing Al+5 and the image has been tilted/of ...
[Feature Request] Niagara Ribbon Render needs V direction Tessellation option
UE - Niagara - Aug 8, 2021It has a common chunking visual artifacts that lot's of triangular Translucent overlap once Ribbon's width is big and twisted heavily facing to Camera [Image Removed] It can be fixed by adding mor ...
Modulate Blend Mode on Deferred Decals does not seem to multiply with background pixels
UE - Rendering Architecture - Materials - May 10, 2022Modulate Blend Mode on Deferred Decals does not blend multiply with background pixels. Transparency for Deferred Decals also does not seem to match with what occurs in 4.27; Repro Rate: 4/4 Tested ...