@mstone972
My guess is it hasn't been raised up with greater urgency or they have a bug refresh/update coming very soon. What I think it a massive miss is when organizations do not acknowledge there is an issue and note it in the bug log for others to know its captured as an issue being investigated. Keeping customers and users in the dark does not help solve issues.
I have continued to test the many variations to try and resolve the bug including a total removal of apple services and products and re-install. Same outcome. I suspect it's an issues with the iTunes Library.itl file. I can remove items from my library and create playlists as normal in my library from existing songs. The second you add a new song from Apple Music into the iTunes library, it locks up the app. Task Manager is required to end Itunes and restart iTunes. At that time, the new file is ok to play as "new" in my library and operates as normal. However, if you go and add another song from Apple Music, the lockup cycles repeats.
Win11 64bit
12.12.9.4