samplePathPosition always return false?

Hi, if I use samplePathPosition, it always return false. According to the docs, should return "True if terminated before reaching the position at maxDistance, false otherwise."
Example:

• I use this to search for RED areas
• The path that my Agent is going to travel is a straight line. It goes through BLUE area (4 units), then RED AREA (4 units), then again BLUE area (4units), then stops.
  
• I'm searching for RED Area using SamplePosition(RED_area_mask, 6, out hitInfo). This should search for RED area at a maximum distance of 6 units along my Agents path: since the RED area starts as soon as the BLUE area in front of him stops (after 4 units), it should return TRUE with a distance of 4 units.
  
• Instead, during the travel, it returns always FALSE, and when hitInfo.mask will contain RED_area_mask, the distance returned is always 6 (the max distance)

Is this a bug?

 

Anyone?

 

Bump!
Is out here someone that uses samplePathPosition and can explain if this method is bugged or not?