Trying to send a mass email to my leads (using professional and with a working email account within Zoho email).

Have created an email template which previews properly with signature and weblink. I go to the choose records tab and no matter what i do i can't get a list of leads- even if i just select custom view and "all open leads", Zoho reports no leads found. Within the leads tabs i have almost 100 open leads.

Whats happening and how do i fix it?