TagFormat is not working properly

[ischowam]

Hello forum

As I'm not sure, where the reason could lie, I start here in this forum.

I am using Minimserver 2.1 (full license) on a Synolog NAS and in this case Bubble as control app.
My files are ordered by folders for each artist, album...
Therfor I am using the folder-view of minimserver.

I have created this TagFormat code, which works well for the title name incl. durage and file-format, but not for the album-name incl. year of publishing. It had worked in HifiCast, if I remember right.

album.displayFormat={$album^^ $Date^[^]^}, title.displayFormat={$title^^$#AudioDuration^ ^^$#AudioFormat^ | ^^}

Only for some albums the album-name tag is displayed correctly with the year in Bubble.
If I enter an album-folder, I even sometimes see the year for a second, but then it vanishs and stays away.

I rescanned and refreshed several times already.
Other changes are updated, but not this.

Does someone has an idea what the reason could be and how I could solve this issue?

Regards
Georg