I had users complaining to me that they couldn't pass the captcha, I found out that it bugs out when the user puts in sentences or uses more than one word. Is this intended? The user gets prompted with "You did not complete the captcha verification process. Please try again."
I tested it on my forum, if one of the valid captcha answers have two words, Xenforo will accept a user submitting two words in the captcha.
However if you setup a captcha with only one word answers, and the user fills in two words during the verification, it will print out this "You did not complete the captcha verification process. Please try again." error.
This is expected. If you haven't defined a valid answer to be "frodo baggins", the system is going to reject it based on the fact that it doesn't believe it is valid. Combinations of answers are not considered valid.