If Ambari wrongly shows as "Add Service Wizard in Progress", starting from Ambari-2.5.x you can fix this reset the UI state.
here is the steps.
1. Go to http://AMBARI-HOST:8080/#/experimental
2. Click on "Reset UI state" button
3. Now login and check the UI. it will be showing all the service options.
Note: This is applicable only from Ambari-2.5.x
Worked !! Thanks for the Work Around
Thanks, it's useful
Works like a charm!!