Problem with Chronoforms v4

I have a problem with my form.

It seems that when you mistype the captha code is will send the form anyway. So the check captcha is not working properly.
My events are as follows:

1. Check captcha:
On succes: nothing is here
On fail: event loop

2. Email
3. Redirect user: to a thank you form

Who can help me?

Hi suzeen,

Please post a link to the form so I can take a quick look.

Bob

thank you!

this is the link: http://trendycolors.nl/index.php/opleiding-pmu/aanmeldingsformulier

Hi suzeen,

The front-end looks OK. By all means email or PM me the site URL and a SuperAdmin login and I'll take a quick look at the back end.

Bob

Hi suzeen,

Everything looks OK in the back-end too :-( I've taken a form backup and will test it on my server in the morning.

Bob

Thank you very much for your help!

Hi suzeen,

Please open the Check Captcha action and set 'Enabled' to 'Yes'.

Bob

Thank you very much, that did the trick.