DR Beta 4, Audio in Edit Page Is Different from Fairlight Pg

Dear all,
Finding a solution to this problem has really taken a lot of time, so I’m posting it here in this group. I just updated to Beta 4 and have carefully arranged the audio in the Edit page. However, when I switch to the Fairlight page, the audio that was visible in the Edit page does not appear.
When I check again in the Edit page, the audio is there, but when I play it, the audio I see cannot be heard. When I open the Fairlight page, the audio is not visible at all.
This is Edit Page :
This is Fairlight Page :
To make it clearer, I have uploaded a YouTube video:

please kindly check it. Thank you.
Finding a solution to this problem has really taken a lot of time, so I’m posting it here in this group. I just updated to Beta 4 and have carefully arranged the audio in the Edit page. However, when I switch to the Fairlight page, the audio that was visible in the Edit page does not appear.
When I check again in the Edit page, the audio is there, but when I play it, the audio I see cannot be heard. When I open the Fairlight page, the audio is not visible at all.
This is Edit Page :
This is Fairlight Page :
To make it clearer, I have uploaded a YouTube video:

please kindly check it. Thank you.