Hi Igor,
Stamp connection has now a bug. Qt does not the retrieve stamp account balances, is showing BTC 0 USD 0.. it says "offline" instead the accountnumber, but creating and deleting manual orders are working.
so 100% btc usd buy and sell rules are not working because QT does not know the account totals.
i have already created a new Stamp api key.
At a 2nd pc i have not made the qt updates and its not working there, too.
So it seems it comes from the Ripple change,
This bug will be fixed in upcoming update.