R:R changes by itself

I'm having a look at this free calgo called EMA Power:  https://ctrader.com/algos/cbots/show/2992

My issue is that as soon as the first trade fails (R:R 1:2) the next martingale trade it opens changes the RR to 1:1. 

What has to change so that the RR stays 1:2 for the following martingale trades ?

And thank you for having a look into this.