I messaged them as well. I know Terasic makes the board, but posted here aswell for a broader pool of support.
Also. Your answer is highly misleading. How can the error be related to an un-supported feature, when it's software installed onto the sd card at the factory, and included with the de-10 nano?
Another thing. The same SD works on another de-10 nano. So how does your answer make since?
Not trying to be rude, but you shouldn't spread misinformation.
You could have just used the cop-out answer of "not the right place to ask this" instead.