Portal Invitation Redemption error -Adding web role using Portals:Assign Invitation Assignment

The Invitation redemption created by portal on redeeming invitation our portal is not able to apply web role  without user logging out .  However, in background , web roles are added.

Use case

We are generating the invitation for our customized portal registration, and  on submission of registration request, sending  invitation to registree  using  Customized workflow(similar to send Invitation). User, click the link or copy/paste the URL and the portal recognizes the invitation code up to the registration for, but once they submit the form with all the fields filled out, they are redirected to Profile page. On clicking My support link they are getting below error - 

You don't have permission to view these records

 This error disappears if they log out and log in.

Any help would be greatly appreciated.