No it didn't. But adding the entire site to exception would defeat the purpose of Adguard, the site would show all its ads. I can't give you a specific site address because this only happens with certain captchas but not others. At times I am able to see them then later on I can't. The only way I can get it to see the captcha is to shut down Adguard completely and clean all the IE cookies and temp files, then restart IE without Adguard. It seems like Adguard is breaking somehow while processing certain kinds of captchas in IE.
Another example. This site 180upload.com, certain kinds of captchas I can't see: