I'm using the las t version of LR Classic with 2 screens on MAC OS Big Sur
Since I upgrade to MAC OS Big sur, every time I start LR the 2 window (main and second whic show the vignettes) open both on my right screen when I configure the main windo on the left screen and the second one with the vignettes on the right screen.
I'm oblige to close the second window, and restart LR, reopen the second window and move it to the right.
It was working fine before the upgrade to Big Sur.
Thanks quanghuyvu, this I've done, but the problem comes after I quit and reopen Lr, all the layout configured is lost and both windows are display one on the other on the left screen. So basically I need to reconfigure the layout every time I start Lr. any idea is welcome. thanks