I tried to update my avatar. Found the original image, cropped to 200x200 and uploaded in the edit profile section. The message at the top of the page said something like "Success... your profile had been updated". But... where the profile picture is at the top of the page... next to the word "Browse" it says "No File Selected". And I see the original small avatar as a small square inside the avatar circle. Is there a file size limit preventing this from working? Any hints as to what I've done wrong??