Music ignores Optimise Storage setting and uses all available storage
I have an iPhone 12 running current iOS (16.3.1). Company phone, so only 64GB. I have a large photo library and moderate Music library.
I thought that Photos was meant to manage its storage - but have had to remove the link to iCloud Photo Library is this always resulted in my phone being full.
I deleted almost all music in my Apple Music library, leaving only 2GB. My Optimise Storage is turned on & Minimum Size set to 4GB. 2 weeks later, my phone is out of space again, Apple Music has taken 12.5 GB, and doesn't delete anything. Even going into Manage Storage >. Apple Music >> and trying to delete tracks / albums, the UI locks up and doesn't delete anything.
Why can't Photos and Music manage space within a pre-defined quota, or manage space so that there is always some free space left?
Any helpful suggestions on how to keep constrain Music?