Crashed disk, Restored music, "Locate Moved" OK: BUT sync deleted all/rewrote all

[artiescie]

Have used MM for a few years, 12K files or so, various devices synced with subsets - all good.

My library storage device died suddenly and completely. I had backup of database, and music files - although in a different disk layout.

So I restored the database, and "Locate Moved" seemed to work fine.

I added 12 files to the library.

I attached one of my synched devices. The auto-sync filters for the device meant that about 3K of the 12K library were populated on the device.

8 of the new files qualified to be added to the 3K already there.

Started sync, and it prompted me to remove the 3K files that were there. I had no apparent way forward but to say OK and see what happened.

I did say OK ... then

EXPECTED: 8 files would be added

ACTUAL: 3000 files were deleted, and 3008 were added.

The result is OK but not ideal.

My experience with MM makes me think there must be a way to avoid all the time and disk wear.

Any ideas would be appreciated before I sync my larger devices ??

[Lowlander]

Which version of MMA and what device? Can you reproduce or was this a one-time thing?