If your on of the people that are having issues with updating your BlackBerry Messenger (BBM) Avatar RIM has addressed the issue on their Facebook page:
“BBM Avatars should now be updating in most regions. If you were experiencing issues please try updating your Avatar again. We apologize for the inconvenience as some users in Asia Pacific may be experiencing issues with BBM Avatars not updating.”
If you are having issuse with updating you BBM avatar try updating it now and let us know if it works in the comment section of this post!
Source: BlackBerry Facebook Page