In the web wallet, I'm getting "Order failed: Assert Exception (10) short_index.order_price < market_stat->maximum_bid();" when trying to place a short at a price equal to the top bid (currently $21.00 / BTSX).
In the past, there's been some discussion on this forum about locking the price to within a certain range of delegate price feeds and/or some form of rate limiting on price changes. I'm thinking I might be running up against some limitation like that.
But I'm not sure what limiting algorithm was actually implemented, or where the current limit is displayed.