Union precise collision problem

Hello!

I am looking to make a sidewalk for my city. For this, I use a large part, which I cut out with a negative part placed on each piece of road. The problem is that there is a collision bug (especially in turns), while my union is set to “PreciseConvexDecomposition”. How can I restore realistic collisions?

Part with negative parts :
image

Collisions :
image

Result :

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Does this issue still persist when the union is in its individual part form? If no, you should open up the decomposition geometry setting to see what the collision box looks like.

I also would not have a Union that large in your game. Cut it into sections, and convert those sections into a mesh; your game will be incredibly more performant that way.

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