Thanks again for this information. I thought that I just messed browser tabs when I saw something similar during today’s testing. Redirection after click update at “Access to plugins” dialog should not take place. User should stay at the same URE page under Network admin. This update saves plugins access data for the main site. So Yes, you need to click “Network Update” in order to replicate them to other subsites.
I will check what’s wrong and prepare the fix.