How to send the Learning Map -- Fields cannot be selected

Hi Experts,

We have created Learning Map for Solution Manager user. But when are now trying to send this Learning Map to user, it does shows the page where we have the roles which we have mentioned in End user tab of configuration of project. But it does not shows the radio button or any option where in those particular roles can be selected to send the Learning Map.

PFB img for more reference. Can anyone let us know how we can make this option displayed and use them.

Thanks,

Rakesh B