Bug preserveTreePrototypeLayers broken

So I ran several tests in 2021.3.19f1 and determined this toggle to be broken. Switching it on, off via the Inspector on the Terrain layer, or via code seems to do nothing at all.

I only detect the Terrain layer.

Code (CSharp):

1. private void OnTriggerEnter(Collider other)
2. {
3.  
4.     Debug.Log($"Layer of collision: {other.gameObject.layer}");
5. }

I also tried setting it via code. Same result.

Any help would be appreciated.

 

No response after a week and a half... yikes.

 

Same here, Unity 2019.4.21f1 windows

 

I seem to be encountering some sort of bug with this checkbox as well (running editor version 2021.3.16f1)

If I check the checkbox, it seems to still place it on the terrain layer, based on what I can find while toggling my camera culling masks in play mode. Strangely though, the trees disappear from the game view when this checkbox is checked, if I am not in play mode (they start to render in the game view only once play mode is enabled; but as mentioned, they are placed on the same layer as the terrain at that point).

 

There are some performant workarounds, but it will take some ingenuity. This is the current state of my workaround for it.... I'm resuming work on it tomorrow. https://twitter.com/eMediaTweets/status/1632277115604283392