[IR SS4] Point Controls


I work with two corridors (15 000m each)... I've designed a lot of parametric constraints, point controls... and here is my issue:
There is short part of my expressway (about 350 m) where my point control doesn't work (it is point control used to set depth of ditches)... have anyone idea where could be my mistake?

I've checked profile lines, corridor objects, template... and everything seems fine, everything works well in the rest of this corridor. I've tried also to change template or profile control line without success. This problem seems very strange for me.

Jan Poslada