Problem with comet pandaren

[YerTsz]

I have a problem is that I made all the reputations in search of the mount and when I get the message I can not use it because I can only learn it with a character of the horde and I am alliance

[Benicus]

check your mount journal

[Kron]

It sounds similar to this bug: https://www.warmane.com/bugtracker/report/26790

[MattS2010]

same problem to me today... i open a ticket maybe they can fix it