Unreal Engine Issues
Unreal Engine Issues
Material Ambient Occlusion Does Not Work With Skylight Set to Movable
UE - Graphics Features - Jul 27, 2018Material ambient occlusion does not work with the skylight set to movable. Setting the material to allow static lighting will fix the issue until the level is reloaded. Found in 4.19 CL# 4033788, 4 ...
Meshes simulating physics cannot roll smoothly across multiple connected meshes
UE - Simulation - Physics - Jul 30, 2018A user has reported a physics regression from 4.19 to 4.20 where attempting to roll a static mesh down a slope made of multiple meshes no longer results in a smooth roll. The static mesh will skip a ...
Niagara Sprite Particles Incorrect Facing with Orthographic Camera When "Velocity aligned" is Set
UE - Niagara - Aug 2, 2018Niagara sprite particles incorrectly face with Orthographic camera when "Velocity aligned" is set for its camera alignment. [Link Removed] seems to be the same issue but with Cascade. Found in 4.1 ...
Adding components in an Actor then undoing them leaves sub-components
UE - Gameplay - Aug 14, 2018Adding components in an Actor then undoing them after an action in the Viewport, leaves sub-components behind. This is a regression from 4.19.2 (CL-4033788). This issue was reported and tested in 4 ...
Metallic Materials Get Darker When Directional Light Is Set to Movable
UE - Platform - Mobile - Aug 20, 2018Metallic materials get darker when directional light is set to movable. In 4.19 the same material will render dark in all mobility of the directional light. Found in 4.19 CL# 4033788, 4.20 CL# 4233 ...
Crash When Substance Material Is Applied to a Mesh In HLOD System
UE - World Creation - Worldbuilding Tools - HLOD - Sep 3, 2018Crash when Substance material is applied to a mesh included in the HLOD system. Working as expected in 4.19 CL# 4033788. Unable to test issue in 4.21 CL# 4339215 due to plugin dependency. Found in ...
InstallVisualizers.bat does not install debug Visualizers for Visual Studio 2017
UE - Foundation - Core - Sep 24, 2018The InstallVisualizers.bat file for 4.20 does not include a way to install the Visualizers for Visual Studio 2017. With Visual Studio 2017 now the default Windows IDE for the Engine, it may be helpf ...
Project crashes when auto save completes after copy/pasting emitters multiple times in a system
UE - Niagara - Aug 2, 2018Project crashes when auto save completes after copy/pasting emitters multiple times in a system Encountered same crash testing Blend_Attributes_System and ExpressionsExample_System. Doesn't seem to ...
Material Artifacts When Using World Position and Pixel Normal Together
UE - Graphics Features - Jan 2, 2019When using "World Position" and "Pixel Normal" nodes together. it causes artifacts in the material. In 4.19 CL# 4033788 this did not occur with the same material setup. Found in 4.20 CL# 4369336, 4 ...
Shader Complexity does not function properly with Android ES2 or ES3.1 set as the Preview Rendering level
UE - Platform - Mobile - Feb 25, 2019A user has reported that Shader Complexity is not working properly in 4.21 with the Android ES2 or 3.1 preview rendering level settings. Regression?: No It did not look this way in 4.21 and prior v ...