hi
i have tested your trigger and the only thing that i could see is setting tin place selection to favourite, all the markets that i tested in, bets were placed in the win and place markets.
i have altered the place trigger to all matching, as you have the condition to pick the favourite from the win market and in a split second the favourite position can change,but you do not want to miss placing the back bet after the lay has been placed.
mcbee
download the trigger below