When editing a lot of CC I find these extra "ok" popups after "apply to all swatches" a little annoying and slowing me down with no apparent value. Not sure if they could be removed.
If you are having problems seeing the CAPTCHA, please clear your browser's cache and cookies and ensure that you do not have any browser addons or extensions that interfere with the display of the CAPTCHA. Then, close the CAPTCHA window and click on the register button to open the CAPTCHA again.