[Strange issue with nav mesh] Can't find path if cylinder is too high. Why?

[Ivan84]

I'm introducing a big pawn in my game. This is a monster with a collision cylinder that has a radius of 120 and a height of 150.
This pawn seems to be unable to use navmesh (GetNextMoveLocation always returns false).
If i set the height of the cylinder to 50 instead if 150 it is able to use navmesh and it works great. The environment is just a normal plane with no obstacles in Z axis.
In what way the height of the cylinder affect the searching?

[Jetfire]

Subclass the scout class and add an entry to the pathsizes array with dimensions it can fit inside.

[Ivan84]

Very interesting, i didn't notice it before!
Thanks.

[Ivan84]

I created a new entry:
PathSizes(4)=(Desc=Monster,Radius=180,Height=180)

to be able to handle every kind of big pawn but this isn't working. The getnextmovelocation always return false if the pawn they want to move against is in another poly.