So for years I've been sharing my music libraries between my MBPs and my iMacs, and suddenly it's no longer working.
My iMac is an Intel i7 (21.5-inch 2019), 32GB RAM, running Sequoia OS 15.6.1, the latest available for Intel macs.
My MBP is an M2 (13-inch, 2022) on 24GB RAM, running Tahoe...