Not save rating and comment

add a video.

i added a new track from itunes, put rating on 5 stars, closed rekordbox and open it new time, and automatically rating is cleared

video at link

https://www.youtube.com/watch?v=1bn7WicYT6o 

@giovanni > Is that within your collection or the iTunes tree (left side of the rekordbox window)?

hi Pulse
you mean the file of video?

it is imported in rekordbox collection

Do you have iTunes open at the time you make the change?

Is the file still located within the iTunes folder structure, and is iTunes set to manage the location of files for you?

hi Pulse

the file is located in rekordbox collection, itunes  closed or opened is the same,  how set itunes like you  tell?

Okay, so you've imported the song to iTunes, you're not browsing it from the iTunes branch on the left.

The file location management doesn't really matter in this scenario (but I always suggest people disable it anyhow -- it can be found in the iTunes > Advanced preferences).

What is that filetype, M4A, MP3, AIFF, WAV, etc..?

Hi Pulse

the file is m4A

Why i not have this problem with old file bought from itunes?

If i change rating or i add comments, rekordbox apply the modify

Is this file purchased and downloaded (with no DRM) or is it from Apple Music?