Material parameters suddenly stopped working for me for an unknown reason. Even for materials which were made from tutorials and had previously worked, the parameters will not show up with the Material Instances. When I open a material instance, under Layer Parameters is just says “Add a Material Attribute Layers parameter to see it here”.
When I made a material instance from the pictured material it says the same, and I don’t know what any of it means but overlaid on the material preview in yellow text it says:
“Base pass shader: 157 instructions
Bass pass vertex shader: 112 instructions
Texture samplers 5/16
Texture Lookups (Est.): VS(3), PS(4)
Warning: Metalness samples /Game/Megascans/Surfaces/Copper_Inlay_Marble_Tiles_8K_M as Linear Color
Warning: ARD samples Copper_Inlay_Marble_Tiles_8K_ORDp as Linear Color”
(I shortened the file path for simplicity)
Where did they stop working for you? In the actual viewport of the game, or in the viewport of the material editor? If it is within the material editor, you might have turned of realtime updates.
Both, I have realtime updates enabled if you mean under “Live Update” all three Preview Material, Realtime Nodes, and All Node Previews are enabled. I don’t think I changed any setting for this to happen, I just closed the program one day, opened it the next and the parameters suddenly stopped working, for all of my projects. I even downloaded a tutorial project from youtube and the parameters didnt show up, even though they were there in the video.
The materials themselves still work fine in the project, I’m just not able to edit instances, which pretty much means I’m stuck.
The only strange thing that happened that MAY be related is that shortly before this problem popped up, Unreal was unable to save two files in the ExternalActors folder. I couldn’t fix it in any way, so had to restart the editor. I noticed the material instance issue not long after.
