Unreal Engine Issues
Unreal Engine Issues
Niagara Fluids Plugin creates a memory reference of any saved level by only being active, before being actually used.
UE - Niagara - Aug 21, 2024While Niagara Fluids Plugin is active it creates a memory reference of any saved level regardless of being actually used. Simply enabling the plugin shows a memory reference while deleting the level ...
3D Grass may not appear in Path Tracer renders
TM - Rendering - Sep 19, 2025Reported in SF [Link Removed] Path Tracer renders of images with 3D grass may not display 3D grass in the foreground of an image. The 3D grass material will not appear or may appear to cut off at s ...
Shader Complexity View not working in Deferred Mobile Preview
UE - Platform - Mobile - Sep 30, 2025Proposed workaround:add in FMobileSceneRenderer::RenderDeferredMultiPass (MobileShadingRenderer.cpp): #if WITH_DEBUG_VIEW_MODES if (ViewFamily.UseDebugViewPS()) { return; } #endif // WITH_DEBU ...
Vertex Paint on Static Mesh Component in BP is lost on Packaged and Standalone Game
UE - Gameplay - Blueprint - Mar 10, 2016BP Static Mesh Components are not retaining the vertex color applied to them in a level when you play in Standalone or Package a Project. You will get the correct results however when you PIE. Thi ...
No scroll bar is created when the Collision Preset section of Project Settings is expanded
Tools - Mar 15, 2015No scroll bar is created when the Collision Preset section of Project Settings is expanded. Clicking an element in the Preset section does not add the scroll bar. Collapsing the section and re-exp ...
A camera set to Orthographic projection mode with a negative Ortho Width will crash the editor on PIE
UE - Graphics Features - Jan 22, 2015A camera set to Orthographic projection mode with a negative Ortho Width will crash the editor on PIE. Reproduced in Main (CL-2412886) Crash Report: [Link Removed] Call Stack:<unknown module>! UE ...
Shape components have a Shape Material property that is never displayed
UE - Gameplay - Dec 17, 2014Blueprint Shape components have a Shape Material property that can be set in its Details or via Get and Set functions in the Event Graph. These are never displayed in the viewport or during runtime ...
Depth Fade Particles are not rendered on iOS when Mobile HDR disabled
UE - Graphics Features - May 7, 2015Depth Fade and Fresnel inputs in a Particle's Material will result in the particle not rendering unless Mobile HDR is checked true on an iOS device. Also Reproduced in Main Promotable-CL-2535351 S ...
r.ScreenPercentage.Editor does not function
UE - Graphics Features - Jun 2, 2016Setting r.ScreenPercentage.Editor does not affect the upsampling/downsampling of the viewport in the editor. Regression: YES - the console command correctly adjusted the screen precentage in 4.11.2 ...
Package fails to load due to EditorOnly data when launched onto Mac or Windows
UE - Foundation - Core - Jun 28, 2017LogPlayLevel: QAGame: [2017.06.28-14.09.14:706][ 0]LogLinker:Warning: Unable to load package (../../../QAGame/Content/UMG/UMG_Sprite.uasset). Package contains EditorOnly data which is not supported b ...