Good news 1: URE works at your site as expected. It takes a couple of seconds to get new selected role capabilities from a server, but it refreshes capabilities view normally.
Good news 2: You helpled me to find a bug. If 1st click “Granted only” checkbox then try to change a current role, checkboxes are not refreshed as they should. They stay in the same state as for previously selected role.
Let me know if you tried to change current role with “Granted only” checkbox turned ON.
Any way I will develop a fix for this bug ASAP.