reverseName settings not reapplying correctly

[noplaneupinthesky]

Until recently my Composer.reverseName.display, Composer.reverseName.display.index settings were working fine, so, for example, Ludwig van Beethoven was shown as such while showing under B in my Naim app controller. Everything has been working swimmingly for months. I added some more Beethoven music with (mistakenly) Beethoven as the composer so naturally and correctly I saw both Beethoven and Ludwig van Beethoven as composers under B. After I corrected Beethoven in the file tags to Ludwig van Beethoven, all old and new Beethoven moved to be displayed in my Naim controller under L for Ludwig van Beethoven not B. It did not honour the settings. The other music was still displayed/indexed by lastname. I could not correct it so I removed the composer name reversal/display/indexing from settings. I managed to get it all sorted correctly by first name in the Naim controller only after a "Restart" for 1024 albums. Then I put the composer settings back to try to reindex everything by last name. Despite a restart everything is back where it was with just about all composers correctly sorted by last name, but Ludwig van Beethoven is stubbornly under L. I also had the same problem with another composer. I am also terminating the Naim app and reopening it with each try.

Anyway to force this to work correctly and obey the reverseName settings (I am also using Artist names the same way)? I am doing something wrong or there is gremlin in the system.

The server runs on a Pi 4B under the PiOS lite 64 bit (headless), controller is the Naim app. MinimWatch is running on Windows 11 used to configure etc the server (I would use Linux Mint only that doesn't work go figure for a top linux distro - way too many hoops to get that going and it still didn't work, I did try).