I am level 80 with Master Engineering at 355/375. The option to train Grand Master Engineering is not available to me for some reason. I've tried both trainers from Borean Tundra as well as Dalaran. Here is a screenshot of what I see: https://i.imgur.com/EXmAIev.jpg
Did i miss something? I wasn't able to locate anything about this in bug tracker or other forums.

