I've had mixed in key with SSl for quite some time and have had no problems importing in to Itunes, and the overviews created in SSl. I scan the Itunes folder and import the Mixed In Key tag to the comments field.

In Serato, i click every track to refresh the info and no problem.

But recently, after getting all the info into SSl, if I close down Serato (not a re-boot) and re open, half the file info from Mixed in key reverts to the previous file info.
But, clicking back onto the said track, the info reloads onto the screen.

What's going on here? how can I get this to just operate as normal?