Maestry Champion Bug

I played Azir in Hexakill in Twisted Treeline and I got an S- and at the same time I got maestry 5 with him (since I got him at 4). Both messages appeared, the one announcing the master 5 and one announcing the token for the S-. Afterwards I checked it and I don't have any azir tokens.

Is that a bug about getting maestry and an S- or the map?