3326978 - User and password is asked to input again in the pop up auth.html window after configure SSO for LDC 3.4.1 in SAP Analytics Cloud (SAC)

• After configured SAML SSO for Live Data connection to SAP Universe, when save the connection it still asks to enter user and password again in the pop out auth.html window like the below screenshot.
• Same configuration is working for LDC 3.3.

• Live Data Connect (LDC) 3.4.1
• SAP Analytics Cloud (Enterprise) 

• Configure the SSO authentication for live data connection to universe as per the help guide: Live Data Connection to SAP Universes Using a Direct Connection and SSO
• Go to Connections in SAC.
• Create a new live universe data connection with SAML SSO authentication.
• Click save button, notice that in the pop up auth.html window, it is still asking for user and password. 

• A new parameter saml.forceauthn is introduced in LDC 3.4.1, if true, it means that the user will be forced to re-authenticate, even if the user has a valid session with the IDP. Microsoft IDPs may requires this value to be set to 'true'. Details can be found in the help guide: What's New in SAP BusinessObjects Live Data Connect

Change the value to false for parameter saml.forceauthn in LDC.properties file, then restart LDC process.

KBA , LOD-ANA-LDC-UNV , SAC Live Data Connection Universe , Problem