trouble with Navigation data(get random point in radius)

Hello guys.
Can anybody help me.
I tried both (ReachablePointInRadius and Navigation), both gives the same result.
So, when I set “Get” to 0 (from Get all actors of class) → AI moving once to random point<, but stopped there and didnt move more.
When I set “Get” to 1 → AI moves first time to coordinate 0,0,0 and then begin patrolling.
But I need him to begin patrolling in random point-GetRandomPointInRadius (not began from 0,0,0)

I have solved it.
Change Get Actor Class to RecastNavMesh and Set Get to 0.

Thanks, that was useful