Make pathfinding ignore a specific blocker cost

I am making a pathfinding script for multiple npcs.
I want them to not run into each other and instead spread out.
I thought maybe if I put a pathfinding modifier in each npc (a part welded to the hrp), they would avoid running into each other
Instead they all clump into one group and do not disperse.
I would appreciate some help with trying to fix this issue.
I have the basic pathfinding script from the roblox pathfinding article.
image_2023-01-26_005115672

give them all a hitbox and set the cost of the hitbox to math.huge

The NPC gets confused by its own hitbox and tries to make a path around it.

I did not think of that, sorry!