I think it is because you are trying to buy and sell with those instructions in the 4 hour timeframe when with MTF you should be buying and selling in the default time frame. That is just a poorly educated guess though.
i think that is the reason, but if is like this MTF is useless to use in Trailing stop code, and no so Revolutionary as said for the TF, in fact i think that one of the big problems of PRT is the use of the Trailing Stop function specially with Big TF, in fact if the funcion #trailingstop makes the results of the backtesting unreliable, a big improve should be using MultiFrame even for smaller periods even if the strategy is for a big periods.
If the MTF remains like now, with the only possibility to use MTF starting for a small periods, thats will be not a big improve.
And also, if i use a strategy originally made with the 4hr TF, starting from a lower TF but with the command Timeframe4hr, results should be the same, not differents.
