Could you please confirm your exact OBIEE version by following below steps so that we can test and provide you solution for same:
a) Login into analytics.
b) Go to HELP in the header of the OBIEE analytics home page.
c) Then click on About Oracle BI EE..
d) A pop up screen will appear please complete OBIEE version mentioned in the popup window.
The version is 18.104.22.168.141014