Hello,
Not really a game bug, but a bit annoying to is, that Trainers asks me if I need some Training Tools when I change the crafting class (eg. when I change from Mason to Enchanter or so). I think Trainers should "know" / recognise that someone is quite experienced in a class if his/her lvl is above 10 or so ... But that option should be somehow open that someone needs the Training tools if someone deleted / sold / lost it somehow his/her tools...
Would be a bit complicated to get the tools back from making them from Training tools to beginner to Journeymanand expert, but there would be a way ...
Greetings,
MurphyFox