though the description has the – in my opinion – correct spelling. I couldn’t find a reference where it’s spelled “Grüber” so I think that should be “Gruber”. And probably the second given name could get added too because “Franz Xaver Gruber” is what one usually finds.
I’ve checked my file tags, there’s no ü in there so I believe it’s in the Roon metadata.
I have reached out to our metadata provider and requested they make a change here. I’ll keep you updated once we hear from them. Thanks for the report!
Our metadata provider has let us know that they have corrected this today. Please give this about a week to be reflected within Roon. Once you see the change on your end please mark this post as the solution.