OS_Web_v9.1.2101_Dif and SSO

THinOS and SSO. One login is our SSO provider.  when the terminals launch the ThinOS web browser launches and goes to the SSO login, the user logins and then is passed to the horizon client on Thinos. This is on version ThinOS 9.1.1131.

We updated our test machines to  OS_Web_v9.1.2101_Diff and the hand off no longer happens when a user signs into the SSO the hand off to the horizon client does not happen. this happen on ether version of the horizon package 2006 or 2012.

We are running Version: WMS 3.2.1 44

Thoughts?