The “Buy” and “Place Order” buttons are greyed out for me on the Trading Post. Its been this way for months, but I largely ignore the Trading Post and hadn’t gotten around to posting my problem earlier. I do remember being able to buy on the trading post when the game came out.
I don’t know if this is an actual bug or some sort of odd account lock, but I would like to be able to use the Trading Post.
Edit: Well, this is why they tell us to search the forum. I broadened my search terms and found the suggestion of deleting the temp file. That was a fix for a “blank screen” but it worked for me.