How to replicate the bug: Go to Gadgetzan and speak with Nixx Sprocketspring with an Engineering skill of 205+ and without Goblin Engineering skill. The Goblin plans will be available to buy and learn without first becoming a Goblin Engineer.
What should happen: None of these should be available to you until not only level 47 (When you can start the quest to become a Goblin specialist) but until you actually become a Goblin Engineer specialist.
Name: Sylxeria
Account Name (for vote points rewards): Akaikosh
Map & Area: Not applicable
How to replicate the bug: Go to Gadgetzan and speak with Nixx Sprocketspring with an Engineering skill of 205+ and without Goblin Engineering skill. The Goblin plans will be available to buy and learn without first becoming a Goblin Engineer.
What should happen: None of these should be available to you until not only level 47 (When you can start the quest to become a Goblin specialist) but until you actually become a Goblin Engineer specialist.
Source (proof, if applicable): http://www.wowhead.com/item=10577 (Requires: Goblin Engineer 205+ )
(Additionally, there's something strange going on with the icons. Possibly from the above issue?)