I've just upgraded to Catalina and started using apple music. Even while idle (aside from "loading artwork" which I'm guessing is a result of switching from iTunes to apple music) I'm seeing the RAM constantly increase. I just checked the performance monitor and sae apple music using 86GB! I've restarted the application and I'm monitoring now and can see it constantly rising.
It does seem like the album artwork sync was the issue. I ended up deleting a 4GB folder of "album artwork" from my iTunes folder. This retained all artwork that was embedded in music files but I've lost a lot of other artwork which I'll just have to reimport. I can say though that since deleting this folder the sync notification has gone and iTunes now doesn't use more than about 1.6GB of RAM.
4.5GB!! Must be a rewrite of the kernel.
Well let’s hope it finally puts this and other issues to bed!
I spent a lot of time with Apple support and ended up upgrading to 10.15.1 and problem solved.
How? I have upgraded to Catalina 10.15.1 as well and I still miss a buttload of artwork.
apple music memory leak
