gomarket's new feed has changed the way orders are executed. meaning EAs may have difficulties.
the order needs to be sent through; then secondly the TP/SL needs to be set. the order and SL/TP cannot be sent at once by the EA.
many ECN type brokers have this system.
it was a chance i was unaware of. hopefully they do a general notification of this soon, so people arent caught unawares.
so if you are using an EA, make sure it can do 'ECN style' entries with separate position and SL/TP orders.