Roughness node not working properly in UE5 [help]

Development Rendering
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Hey, I’m new to UE5 and I’ve noticed that whenever I link any other node except the constant node, the roughness doesn’t change. Not even my roughness map worked on it, even though it should’ve.

Also, when I change the constant node into a parameter, the roughness is still unresponsive.

I can’t upload a video on here for some reason but it’s on this link.

NOTE: This is happening to every texture I have in UE5, the nodes connected to Roughness do not work whatsoever except the constant node, I don’t know why. This has to be a bug, I’ve tried everything I know.

EDIT: There are only two options for me when it comes to the material roughness. It’s 0 or 1, I’m not able to change it inbetween such as 0.5, 0.8 etc. It doesn’t change, doesn’t work.

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Roughness is a 0-1 value, you’re plugging a color texture in :slight_smile: ( so plug the R pin in )

Also, after converting to a param, you might need to compile.

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The first solution you provided doesn’t work. I’m seeing the same unresponsive result.

I don’t understand the point of compiling in my case. From what I’ve researched it’s used for C++ projects, mine isn’t. I’m assuming that compiling means saving in this case, which I’ve tried already.