what is “red-only track”?

[Juris Eksts]

Have you accidentally locked the track?
I’m not in front of the Avid at the moment, but there’s a picture of a padlock at the left of the track, activate the track and in one of the menus at the top left you can ‘lock track’ or ‘unlock track’.

[Avi Lev]

thanks. I didn’t lock the track, but they were locked. I wonder if by any mistake I pushed some short-key to a lock position.(?)