Unreal Engine Issues

LightColor property for light component and skylight component are animating all other color properties

Material Function Input Displays Incorrect Data Type for Volume Texture, Static Bool, Material Attributes, and External

The material function Input Displays incorrect data type for Volume Texture, Static Bool, Material Attributes, and External. The function will still work properly however the type data is displayed ...

Distance Fields do not work with Directional Lights when using a AMD Radeon card.

Distance Field shadows do not appear to be working with those using Radeon series cards. Sample project attached DXDiag of machine that is having the issue is attached. AMD Radeon 200 series. ...

Blueprint fails to compile when adding new member to struct that is an input parameter of implemented interface function

Adding variables to a structure that is an input parameter of an interface function causes a compile error in any blueprint that implements the interface until the interface is recompiled. Compile ...

Functional Test won't start when placing a moving actor inside the level if setting Navigation Mesh's Runtime Generation to Dynamic

User is trying to use the Functional Test class to construct some automated test cases. Whilst doing this they noticed that adding a BP_Actor (just a static mesh engine cube) that simply rotates (v ...

Duplicated TextureLoadVirtualPageTable in GetCustomData functions in generated HLSL add to the total instruction count due to TextureLoad having side effects

When using materials with CustomData inputs, such as the Eye material with Iris Distance and Mask, Virtual Texture samples will increase the instruction count for each unique VTPageResult. Each cus ...

The FNetNameMapping::GetUniqueName function appends numerical values to the end of the previous name instead of replacing the previous name's numerical value

The GetUniqueName() function attempts to make sure that all node names are unique. For nodes that are used a large number of times, it adds a numerical value to the end of the name. Prior to 4.18, t ...

Virtual Scouting Interactor / VR Scouting Tools Menus appear Black when using real-world lighting values (i.e. 70k lux)

The Virtual Scouting tools appear black in scenes using real-world physical lighting values due to their UI Material Domain since they do not have an emissive channel and do not accommodate viewport ...

Naming a Blueprint function/graph with non-ASCII characters can cause a build failure for certain cooked targets when Blueprint nativization is turned on.

This is due to the [Link Removed] encoded UFunction object name passing through UHT into the boilerplate code (*.gen.cpp) that gets generated from the nativized Blueprint's C++ header file. The iss ...

Cannot pass a Dictionary through a Replicated Function

When passing dictionary (map) variables through replicated (to server) functions, the value will not print out on the client. In 4.19.2 (CL-4033788) this caused a crash but in 4.20.2 (CL-4302132) an ...