Multi disc albums not being numbered correctly

In v3.32 when I use the Auto-numbering Wizard for a multi disc album with separate directories for each disc, the disc numbers are no longer showing as 1/3; 2/3; 3/3 with _DIRECTORY selected as the disc counter reset. It does work when I select ALBUM, even though all tracks have the same Album title.

I think the issue is the disc reset setting used to be saved as ALBUM but somehow reverted back to _DIRECTORY

You have ticked Next disc on change of directory.
If you want to get a reset on change of ALBUM you have to tick Next disc on change ofand set ALBUM.

Not to be confused with
Reset disc counter on change of
(you can set it too, if needed.)

From the documentation:

Resetting and Incrementing Counters

Next disc on change of directory

If enabled, the disc counter is incremented on directory changes.

Next disc on change of field

If enabled, the disc counter is incremented if the value of the selected field changes.

Reset track counter on next disc

If enabled, the track counter is reset if the configuration settings above trigger a new disc.

Reset disc counter on change of field

If enabled, the disc counter is reset if the value of the selected field changes. The track counter is implicitly reset when the disc counter is reset.