Is this an external captcha plugin? or you are using EMPro?
did you add the captcha in single events page using a shortcode or you modify templates?
neither, only activate the plugin.
You can view the plugin in action on http://www.jazz-imo.com/?event=swing-a-yeu
Captcha Version 3.5
Events Manager Version 5.3.9
hmmm, works for me since I see 4 + _ = 13
; might be cache issue
we removed a filter that caused problems with various captcha plugins.
try adding this to your functions.php file in your theme:
function my_em_register_form(){
do_action('register_form');
}
add_action('em_register_form','my_em_register_form');
I’m surprised it works in earlier versions, most other captcha plugins showed the captcha but didn’t validate
Thank’s Marcus
With the Version 5.4.1.1 and your code it’s ok