Cisco AAA/Identity/Nac :: Testing Windows 8 Consumer Preview With ACS 5.2 PEAP Auth

We are deploying ACS 5.2 to replace our ACS 4.2 in production.  I have two wireless networks setup as WPA2-Enterprise.  One points at the ACS 4.2 and the other at the ACS 5.2.  Both use the same SSL certificate with the same CN.  Both authenticate Windows 7 clients.  However, Windows 8 CP will only authenticate to the ACS 4.2 and not to ACS 5.2.  The error it gives is:
 
11051 Radius packet contains invalid state attribute
 
It also shows no authentication method (most of the time).
 
Occasionally, I get a request that actually shows an authentication method of PEAP (EAP-MSCHAPv2) which is what it should be.  On those requests, I get error:
 
24444 Active Directory operation has failed because of an unspecified error in the ACS.
 
Both ACs 4.2 and ACS 5.2 are pointed at the same Windows AD source.