Thanx for the feedback, I appreciate!
:( The author is not showing on the K2 Ver 2.6.6 item (article).
My members are logging in via CB 1.9.
In backend I have set the K2 parameter to enable CB integration, but it is not doing any integration in the frontend. The integration with CB, is great with Kunena and Groupjive, in achieving the issue I query.
Please advise further.