LineRenderer Collision

Unity Engine
1

I am having the user draw a line on the screen. I add a box collider2D to the line. Everything works like I want to, except one part.

If the User draws a line very quickly or long the boxcolliders stop being added. So for a long line, the right half of the line doesn’t have collision detection. I’ve looked online for hours and no other solution seems to work.
I can post some of my code tomorrow, any ideas?
Basically: I’m creating vertices along Touch.Moved positions and adding BC2D by making the transform.position equal to the line transform.position.

thanks

2

I used EdgeCollider for similar case,
user needs to draw line fast to connect 2 planets:
http://ludumdare.com/compo/ludum-dare-30/?action=preview&uid=27533
(see webplayer bit down the page)