domhatch Thanks! This was helpful.
I checked the logs and the issue lies somewhere between a "RouteNotFound" exception and a "PermissionDeniedException".
I can't fix it but I think I can offer a workaround until this is fixed.
When you log in, click "Remember Me". That should keep your session alive long enough that when you try log out, it works.
Will you try that over the next few days and let me know if it works? If it does, I'll update the first post with the details of the issue + workaround.
Thanks!