I am experiencing a strange error preventing the new user registration process to be successful after the update of Joomla and CB to current version. After submitting the registration (page is refreshed)it returns an error which means (translation from czech lang) "entered words are not matching those shown". This leads me to the idea there is something wrong with captcha. Nevertheless when I really enter the captcha not correctly it returns a different JavaScript alert immediately after the submit button is clicked (without refresh).
It worked well befor ethe updates.
Anyone experiencing it? What is the reason & solution?