Questions about tag formatting limitations

[simoncn]

I have reproduced this behaviour. You are seeing this because of how MinimServer groups work.

A group is an item, just like an ungrouped track. It appears in Browse and Search results alongside ungrouped items (tracks). The contents of the group do not appear in Browse and Search results. To see these contents, you need to open the group.

To enable this behaviour, the tags from the tracks in a group (Artist, Composer, Genre, Work, etc.) are copied to the group item. The enables the group to appear in Browse and Search requests when any of the contained tracks is a match.

In your scenario, the group contains tracks with different Work tag values. All these values are copied to the group item. When displayFormat or indexFormat is applied to the Group item, all Work tag values are included in the formatted result.