I can see there has been some activity on the promotion history editing interface on your profile, you must have deactivated the brown belt record by accident? We haven't changed anything in your profile at least, promise :) Just go activate the brown belt record again :)

After having a bit of a look there are a few things I've noticed: -Your listed coach is a brown belt so it would not be possible for him to primus you to brown. -The person you say has promoted you has what looks like a child's drawing as a profile picture and has not had his identity confirmed so he cannot confirm he promoted you (I believe he would be required to be verified first also) Other things: Someone who was verified and verified you may have changed something on their profile requiring reverification, for instance the black belt who promoted you could have changed his profile picture to what he had now making it impossible to verify his identity thus removing any verifications he has awarded. You may have changed something on your profile, a date or promoter of something needing reverification. You have enough points for brown so there must be something to do with the information degassing the brown belt. I know this isn't a solution but it may help to decipher the issue. Good luck.

I think you missed the point; the problem was that his profile used to be brown belt but now is purple belt. Belt rank of coach and verification status of who promoted you has nothing to do with what belt you can register your profile as :)

I never changed anything, it changed without my action.