Can you give me an example of missings albums?
I have an album called "colouring book" and taged it as "colouring book <ep>" and it works. the tracker removes all inside "<>" for album art creation, same for "()".
About removed albums, it's a tracker problem. Let me see if removing some file it can be fixed, cause "tracker-control -r" fixes it but removes all the contacts and sms from database too.