I have a problem that I never had before. My track selection is not saved any more within the project.
It is always the same, 1, 2, 4, 6, 7, 8, 9, 10 whatever the project is :

Is there a way to change that  or is it a new "feature" ?
I don't understand why it selects pure audio tracks....
Thanks in advance for any clue or idea.