Upgrade to SP7 vs 72 broke SQLCC Anon user in XS app

We have an XS application set up to use an anonymous sql connection.  It worked before we upgraded to SP7 v. 72 but not after. We're being prompted for credentials now.  There are no errors in the xsengine log file and the user is still set in the XS admin tool.  Any thoughts?

Thanks,

Amy