I have set up a new column that inserts tags from two other columns:
Name: KompWerk
Value: $if(%work_year_sort%,%work_year_sort% %group%,)
Field: %KompWerk%
The entries are properly. Only they are not saved. Marking and saving album is unsuccessful. The only previous option: Click each individual entry of the column for editing. With over 30,000 tracks ...
Completely new albums work properly.