This simple example seems to work: http://fxdreema.com/shared/Pg8gzq4P
I think the problem is something in Formula blocks or the way they are connected. I can recommend to not use so many variables (Results), you can modify the same formula result in multiple Formula blocks. Or define variables (click on Variables) and then use "Modify Variables" block. The idea is to make it as simple as possible with less variables and blocks.