Hi Juan
We found a bug in Rescale Result option of Pixel Math
If you apply for example $T to the image and put a rescale values at 0.5 to 1.0, the result is like 0.0 to 1.0
It is working fine under PI 1.7
Cheers !!!
PS : thank you for ALL other bugs corrected since RC1 ! Very nice 1.8 with speed increase !