If a filename would be '05 - Cool Shade Accompaniment.mp3', by calling 'filename to tag' I will see the right formatstring '%track% %title%'. But as a result I will just get %title% for this renaming as then would be "- Cool Shade Accompaniment.mp3" - the tracknumber '05' would be omitted.
Next, a tracknumber minor to 10 would be crippled and by using %track%. For '05' I just get a '5' instead of '05' for a filename.
%track% %title% is not the right formatstring for this filename. You'd need to adjust it to the format of the filename. In this case, the track number is delimited by " - " from the title, so you'd need to use that as delimiter.
Thanks for your kind reply and sorry for the flaw in my format string.
As a result, the correct string didn't change the game.
I've also uninstalled my v2.94 and installed v2.94c for a fresh start, it didn't matter also.
Of course I could insert the tracknumber by manual editing, but a format string would be so much better.