Rekordbox 5.8.5 My Tags missing

Hi!

I am quite new to using all of Rekordbox functionality. in March I decided it was time to start tagging all my tracks so I can use the functionality when i have it available to me. i started and did around 100 tracks which I recently bought. Now all of a sudden the tags on most of these tracks are missing. memory cue points,grid and comment are still there.

For my workflow I first import tracks to iTunes, in which i correct names etc. after this I import to my Rekordbox collection and adjust grid etc.. I did not move files to another folder on my MacBook.

Does anyone know what might cause this problem? Is it something that I can fix?

I would like to use the tags, but will not bother if i have to redo them over and over.