Is anyone else finding the beta 11 unusable due to being unable to select scrollbars

I am really struggling to use Beta 11.
My issue is that when working in App Connect, using the picker for dynamic values it is almost impossible to see or select the scrollbar to scroll down the panel.as it is so small and impossible to see

Anyone come up with any tricks to help with his

Alternatively, if i was simply to reopen the project in 3.9.9 and start working there, will this work ok?