i updated to 12.2.2.25 and have some problems..(like quite a few people it seems..)

my music is on our NAS and for the first few days we had no music.. i managed to roll back to another time using the previous library itl files but in doing so have obviously lost some of the music in the library.. not the physical files but just what it shows in the library..

How do i get the library to actually check whats in the folder and put this right?

My itunes has done this forever, the only fix I’ve found is to relink them manually. Which as it only allow you to do this one file at a time, I tend to just delete the offending album from itunes and then rescan the folder. Used to be a lot worse at loosing files, than it is now, I can tell ya.
If there a better way of making itunes do this automatically, I’d be interested in knowing.