Pasting a material graph breaks connection to any material function nodes.

Tools - Material Editor - Dec 4, 2019

Pasting a material graph breaks connection to any material function nodes. ...

Pasted material function nodes lose their connections

Tools - Material Editor - Dec 3, 2019

The fix for UE-74965 caused a regression where links to material nodes no longer carry over when a group of nodes is copied and pasted ~ User submitted Image and repro steps appended. I confirmed ...

Copying and pasting a material function renders all of the duplicates inputs as not having default values

Tools - Material Editor - May 22, 2019

The top material function was placed in a graph directly. The second was generating by copying the first node. Note that the input pins changed color which indicates that each input on the new modul ...

Tooltips incorrect when changing FExpressionInput of UMaterialExpressionTextureSample

Tools - Material Editor - May 16, 2019

It seems that the display of ToolTip is displayed in the order of declared UPROPERTY () of the code.[Image Removed] ...

Adding an entry to arrays within Details Panels automatically collapses expanded entries

Tools - Material Editor - Apr 3, 2019

Adding an element to an array in the Material Editor automatically collapses all expanded elements in the array. I've successfully reproduced this issue with the following nodes:LandscapeGrassOutput ...

The texture preview does not update in the Texture Sample

Tools - Material Editor - Mar 14, 2019

The preview image for the Texture Sample Node does not update when the Texture parameter is linked to a Texture Object. Tested in 4.21.2 (CL - 4753647), 4.22 (CL - 5365847), 4.23(CL - 5396611) ...

In a Material instance, parameters of newly selected Material Layer Instance are overridden by default

Tools - Material Editor - Feb 15, 2019

 A minor issue but can be quite inconvenient when there're a lot of parameters. ...

Material Instance Can't Update Material Parameters Defined in a Material Function Within a Material Layer

Tools - Material Editor - Nov 21, 2018

When you edit the parameters of a material function that is within a material layer from the material instance, the material instance does not update. Found in 4.20 CL# 4369336, 4.21 CL# 4541578, a ...

Duplicating a SetMaterialAttributes Node Causes Missing Attributes

Tools - Material Editor - Nov 5, 2018

Duplicate SetMaterialAttributes nodes will be missing attribute connections on the node itself, but in the properties tab they will show up. Found in 4.19 CL# 4033788, 4.20 CL# 4369336, 4.21 Previe ...

Incorrect Input Index When Removing The Input From Custom Node

Tools - Material Editor - Aug 27, 2018

The input removed the connection points are not re-indexed. So connected 'wires' stay on their places. That causing disconnection of the last wire as well as shift for every node that followed the o ...