Unreal Engine Issues

Vertex Painting changes collision complexity if the asset is saved while vertex painting

Vertex Painting changes collision complexity if the asset is saved while vertex painting. The collision change is set to "Use Complex Collision as Simple". If this is intended functionality there sh ...

Groom component created from Blueprint ignores "Forced LOD" on LODSync component

Regression: Issue occurs in //UE5/Release-5.0 This issue occurs with any Groom Asset created from a Blueprint. Other components work properly with the Forced LOD settings, as only the Groom does no ...

Volumetric Lightmaps do not work with Landscape texture mapping

It appears that the Lightmass Volumetric Lightmap does not work with Landscape textures. When it samples the Landscape with some textured material, the resulting lighting build data does not match t ...

Dynamic material is not discarded when other sub-sequences are played while the master sequence is playing

Initial Modules are clamped to a 0 to 1 time range

The Initial Modules appear to be clamped to a zero to 1 time frame since 4.8 was released. Projects that are converted from 4.7.6 will have correctly working particle systems, but adding a new part ...

Single Channels From a Curve Atlas Node Does Not Remap to New Values

Single Channels from a Curve Atals Node Does Not Remap to New Values. Working as expected in 4.22 CL# 7053642 Found in 4.23 CL# 8386587, 4.24 CL# 9630693, 4.25 CL# 9615021 This is a regression. ...

Postprocess material is doing blend between Parent material and it's instance

Pixel inspector does not work in DX12

The pixel inspector does not work in an editor using dx12 The pixel inspector works fine in dx11 Related to [Link Removed], but making a new bug for separate prioritization ...

Pixel inspector does not work in Vulkan

The pixel inspector does not work in an editor using vulkan The pixel inspector works fine in dx11 Related to [Link Removed] and [Link Removed], but making a new bug for separate prioritization ...

Particle emitter with Mesh Data type does not change material to new material instance

Particle emitter with Mesh Data type does not change material to new material instance. It will not apply changes that are being made at run time to a parameter in the material instance being used.  ...