I have the same question,
Did you find a solution or workaround of your issue?
I have the same problem. I though that I was not correctly configuring the EA of my AR Server, but, for your post... Is it true that BMC Support said that it is not possible to have RSSO and AREA working together?
Did you manage to get any solution for this?
Check this URL below which should assist/help to validate AREA LDAP and RSSO which works fine at our Environment with no issues.
Check and let us know if this helped resolve the issue.