Unreal Engine Issues
Unreal Engine Issues
Pixel Inspector does not display Gbuffer values properly when a mesh with a material that has Anisotropy set is in Level
UE - Rendering - Features - Jan 16, 2024This issue occurs when there is a material with Anisotropy, like the attached GIF.[Image Removed] ...
Custom buffer visualization material instance problem
UE - Rendering - Architecture - Materials - Jun 28, 2024Material Instances used in Custom Buffer Visualizations do not respect parameter overrides, and use the parent material's values. Also tested on UE5-Main, CL: 34543023 ...
Landscape Layer Painting issues when painting near the edge of delete Landscape Proxies.
UE - Graphics Tools - Terrain - Jul 19, 2024It appears that the landscape painting tool is not correctly taking into account deleted landscape sections, resulting in artifacts inside of the weight textures. ...
'prefix parameter names' checkbox in a material function's settings does nothing.
UE - Rendering - Architecture - Materials - Nov 14, 2024Prefix Parameter Names checkbox does not work as expected, and the Group names are unmodified. The value "UMaterialFunction::bPrefixParameterNames" does not appear to be used anywhere in the Engine ...
Water body actor casts static shadow
UE - Graphics Tools - Terrain - Water - Jan 14, 2025WaterBody Actors will cast static shadows in built lighting even if their Cast Shadow options are disabled. ...
Character jumping can become permanently blocked under subpar net conditions
UE - Runtime - Character - Dec 8, 2023Problem Under laggy networking conditions, if the user rapidly presses the jump button the character can at some point stop responding to jump input. Initial Thoughts It looks like there's a logi ...
Large Memory Allocations When Adding a Landscape_WaterBrushManager
UE - Graphics Tools - Terrain - Mar 17, 2025When a "Water Body River" is added to a Scene with a Landscape, eleven Render Targets are allocated for the water rendering. These Render Targets are sized according to the resolution of the Landsca ...
Changing MaterialQualityLevel causes a crash due to a ShaderMap mismatch in UniformExpressionCache
UE - Rendering - Architecture - Materials - Nov 26, 2025A crash may occur when changing the MaterialQualitylevel via Scalability due to a race condition. The issue occurs because in ScalabilityCVarsSinkCallback(), when it creates the FGlobalComponentRec ...
Incorrect number of vertices displayed by ProfileGPU command in Cascade particles
UE - Rendering - Architecture - Niagara - Dec 9, 2021This issue was reported by the licensee, but it's possible that the number of vertices in the particles is higher than it really is. ...
Reimporting mesh will wipe any collisions that were setup using the Static Mesh Editor
Tools - Jun 12, 2015When Reimporting a mesh the collision that is created using the methods in the Static Mesh Editor will be wiped if there was not previously setup UCX custom collision. ...