Hey Uncle Frank. We had the same issue on our server. Some how while set to SD Admin role, I was looking at the configuration of Service Desk. Next time I went in the system locked me up immediately. Showed only a portion of the page and "loading.....".
To get myself unlocked, had to go in as another administrator and remove myself from the SD Admin role and KB Admin role. Was then able to lo in without any problems. Was able to consistently repeat getting locked up and clearing myself. Open a ticket with support, they acknowledge a bug but did not have a fix yet. Essentially the fix they currently have is what I did to get your self unlocked. However still if I add myself to the SD Admin role and then as soon as I switch to it, I'll get locked up again.
Problem isn't the role, but I believe that since Kaseya remembers where you had the new menus open to, once you select that role it remembers it and if you close your browser and log back in, it will put you back into that role causing you to be locked.
However I could create a totally new user, assign then to SD Admin and they could access the config without any problem.