Collider.excludeLayers` Not Working at All in Unity 6

Unity Engine
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1

Hi everyone,

I’m using Unity 6, and I’ve noticed that the Collider.excludeLayers property does not work at all. For example, even if I set excludeLayers to exclude a layer like “Enemy,” the Collider still interacts with objects on the “Enemy” layer. The exclusion simply doesn’t happen.

Here’s what I’ve done:

  1. I created a layer named “Enemy” and assigned it to specific GameObjects.
  2. In my script, I set the excludeLayers property like this:
    collider.excludeLayers = LayerMask.GetMask("Enemy");
  3. Despite this, the Collider continues to detect and interact with objects on the “Enemy” layer as if the exclusion wasn’t set.

This behavior was not an issue in previous versions of Unity, where the excludeLayers property worked as expected. It seems to be entirely broken in Unity 6. I’ve double-checked the following:

  • The Layer Collision Matrix in the Physics settings is configured to allow the layers to interact (so it’s not a global collision filter issue).
  • I’ve confirmed that the excludeLayers value is set correctly in the script and applied to the Collider.

Is this a known bug in Unity 6, or has something changed in how excludeLayers is supposed to function?
Has anyone experienced the same issue or found a workaround?

Thank you for your help!

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