Siebel reports fail when SSO is enabled for Field Service Object manager

 Hi,Siebel reports fail when SSO is enabled for Field Service Object Manager but works  when NO SSO is enabled for Field service object manager. BI Publisher is standalone and is 10.1.3.4.2 and Siebel version is 8.1.1.10. Field Service with no SSO is using ADSI and with SSO also using same ADSI adapter and no custom adapter was created.

We are on Siebel CRM (Public Sector) 8.1.1.10
We are using Oracle BI Publisher11G  (standalone)10.3.4.2

We are successfully generating Reports when the OM is using ADSI Auth and the EAI component is Adsi authentication. We are not using any custom adapters.But fails when using SSO.