This is odd and I have never run into this issue until now. Building out a new site and all of a sudden, I noticed I can only access Row settings inside Beaver Builder. I can no longer select modules inside a Row. At first, I thought it was the GP Premium plugin based on deactivating all plugins to test each one. But after more testing, this was not the case.
What I did find was that if I activate the 2020 theme, BB works properly. When I activate the GP theme, BB works properly. It is only when I activate the GP Child theme, then BB no longer works properly. I originally followed this article to get a GP child theme installed.