For all those who are facing OTP issue and cvv not being asked. Re tokenise your DC. i.e Choose add new card and re enter your DC details. Save the details as per RBI guidelines Then proceed to pay. It should work for payments thereafter. JIOFINANCE App is still buggy.
A new version of the MyJio app was released recently with version 7.0.69 that includes the full-fledged JioFinance module with no difference whatsoever. So you no longer need to have the JioFinance app installed.