After completing all the bonuses. Instead of going directly to the country the captcha at the login screen is displayed. If i logout and login again the captcha is gone so i guess it's a bug?

Iphone 3gs, 4s & Ipad 2 i have tested with.

Yeah this happens to me, and it's very annoying. I typically play from my phone only when I'm away for extended periods of time though, so I wasn't sure if this was a 30+ hour thing or a bug.