Hello.I want ,navigation mesh always navigate.I mean : When i spawn a collision box while playing the game. It doesn’t navigates so character doesn’t finds the path. How can i make it happen ? Thanks you 
you need to better explain your issue. the way you currently have it written is extremely difficult to understand. whats your goal? whats the issue you currently have? and what have you tried thus far to solve it? provide details and maybe even images if they are helpful.
Acctually its really simple i have top-down template project. And when i click a position.Character finds a path if collision blocks his way.And then it moves.So here is my question.While playing the game.And if i spawn an actor that has collision box.If i click behind that collision box Character does not finds path. So how can i make it happen ?
So character doesn’t move behind that collision box