Hi @Grzesiek2010 ,
Not sure and I don't recall why. The only thing I know (maybe by try and error) is that is was working fine using this condition on the older ODK version. With the new version, it seems that there is no restriction on the number of points and it accepts polygons with 3-5 points. So it looks like the condition is not becoming active....?
I don't know if you test it if it would work...? As said, my would like to have a condition that only polygons with >= 6 points are accepted (not less) and do not have a self-intersection.