Why are some assets in the material editor grey?

how do i fix this?

Sorry, your question is too vague. Can you show the whole material and what it looks like on a mesh?

Are you talking about the pins?

It because of the material domain you’re using:

305332-domain.jpg

When you tweak those settings, the pins will change. Some pins have no meaning in some domains, hence they are greyed out.

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i mean for instance like opacity and subsurface texture…