1st, “Admin menu access blocking” is not replacement to the initial user permissions. I recommend 1st revoke from a role all capabilities which are not needed. And block rest unneeded admin menu items using “Admin menu” only after that.
For example, it’s quite better to revoke from a role all ‘strong_testimonials_’ capabilities. It will automatically makes unneeded ‘Testimonials’ submenu items unavailable.
Btw., I see that you correctly revoked from ‘BBTC Admin’ role ‘rm_’ capabities. It’s right.
What admin menu items selection are not saved when you try to select them in the “Admin menu” dialog?