Access Policy Evaluation is already in progress for your current session

Adding more details to it:

Following steps can be used to reproduce this issue (at step#3):

1. End-Users accesses F5 APM (using SAML authentication) URL in a browser tab
2. F5 redirects to IdP login page but end-user doesn’t enter login credentials.
3. End-user accesses another F5 APM protected URL from the same browser on another tab and enter login credentials then F5 displays that error message “Access Policy Evaluation is already in progress”

Expected Solution:

At above step#3, instead of displaying error message user should be taken to requested F5 APM protected URL after successful authentication.