The (picture) popup appears only on second click

I try to implement the recaptcha v2 on a django driven webpage. The recaptcha widget appears, but if i click on "i am not a Robot" the html get some code added but nothing happens in the view. Added code from google api.js:  

         

The div is "hidden" and the values for left and top are some kind of wrong.If i wait until the recaptcha widegt gets reloaded, the popup window appears, the added (changed) html looks ok and :have addiotional entrys:  

             

  What can i do o make the popup work on first click? -- You received this message because you are subscribed to the Google Groups "reCAPTCHA" group. To unsubscribe from this group and stop receiving emails from it, send an email to recaptcha+unsubscribe@googlegroups.com. To post to this group, send email to recaptcha@googlegroups.com. Visit this group at http://bit.ly/1dkFnYd. For more options, visit http://bit.ly/P65DvS.