Just want the admin to know that this "security feature" is a real pain in the ass. It sometimes takes up to 5 minutes to finally pass. 
This is terrible when you clicking the incorrect properties mentioned in the captcha you see on the webpage while you logging into the forum mate. If you done it perfectly then there is no problem in logging in to the account bro.
So you just be careful on that and then you will not get any issues. For this and all it is not seems good report with moderator.