Hi @hdls and @Georgethesixth ,
Mike has given a useful explanation of how the metadata can create multiple entries for the same artist and what can be done to fix it at the moment.
Edit: I’ve marked this Solved for the moment, so the devs don’t see it as an open issue when browsing the Support forum. Mike’s post sets out the most that can be done at the moment. Future editing capabilities are intended in a later release. If you have any particular issue and seek further assistance please feel free to post here again or open a new thread.