Game Mechanics: The server does not recognize the tradeskill container...

[Apeople]

I have now encountered this error twice while working on shawl quests.

The first time I was using the oven near mordin to make ulthork stuff and I got an error saying The server does not recognize the tradeskill container you are attempting to use. My ui locked up at this point and i lost my ulthork meats upon logging in

The second time was at the thurg pottery wheel and I had the same error, but it booted me from the game. Upon logging in all the mats in the wheel did not reappear in my inventory.