GraphQL query resolving references on a _raw field in Gatsby

Hey all, if within a gatsby project I remove the node_modules and reinstall them I must clear the gatsby cache in order for Mux video to work. I've noticed that when using the GraphiQL interface and I do a graphQL query resolving references on a _raw field if I don't clear the cache the reference then the 'asset' comes back null. As soon as I

gatsby clean

and re-run the same query, the 'asset' field gets populated with all the mux data.
Anyone any idea why this might be happening?

I’ve also been having this problem, I think it’s a bug in version

7.4.2

as downgrading to

7.4.1

seems to solve it for me. Someone else has opened an issue on Github about this too: https://github.com/sanity-io/gatsby-source-sanity/issues/154

Thanks Simon. I'll take a look.