Help Tours Mod not triggering after Profile creation

Hi all, after new account creation I setup my UNA system to send an Email for account verification. When the new user klicks on the verification link, a new window opens and he is then redirected to the startpage. Although I setup Help Tours for showing on the startpage at first view, it doesn't trigger. I guess, it might be because of my account settings in Studio - Settings - Account. Any suggestions on what's going wrong, folks? Screenshots attached.

Edit: Or maybe opening a second browser window from the verification link in the email prevents the mod from starting up because the system counts that as second visit and therefore doesn't fire the Help tour any more?