Bug Cinemachine Raycasts incorrect when Framing Transposer is moving

Hi all,

I've got a top-down camera with Cinemachine using a Framing Transposer, and have found that if the camera is moving at all, raycast results become jittery/inaccurate even if the mouse is perfectly still.

The only suggestion I've found is from @Gregoryl to make sure casts are being done after Cinemachine has updated. However I am already manually updating Cinemachine with CinemachineBrain.ManualUpdate() in LateUpdate. After which I then run the following code:

Code (CSharp):

1. Ray ray = WorldCamera.Camera.ScreenPointToRay(screenPoint);
2. new Plane(Vector3.up, new Vector3(0, 1.5f, 0)).Raycast(ray, out float enter);
3. Debug.Log(ray.GetPoint(enter));

With the mouse perfectly still on screen, the result of ray.GetPoint(enter) jitters for a long time if the Cinemachine camera has moved at all recently (even very, very slightly), and continues to jitter for a few seconds after "reaching" its target (though looking at the VirtualCamera's transform, the camera itself is also jittering very slightly). Incidentally, with Gizmos drawing in the Game view, I can also see the Cinemachine frustum shaking in the same manner (and lining up perfectly with the raycast's jitter).

Any help is greatly appreciated, as I've been stuck on this for a long time!

And in case it helps, here are my Cinemachine settings (the VirtualCamera's Transform.rotation is just set to X=50):

 

Thanks for the reply! You can, but as far as I can tell all of the important/relevant Transforms are at the root:

CameraTarget's position is set directly in my script, and I've tried setting that in Update, LateUpdate and FixedUpdate with no change.

 

I did have that thought, because I was setting the distance from the player based on the mouse's viewport position. So I stripped it back to be as basic as possible:

And have the same results as above. The camera position isn't being affected at all by the mouse position, just the target's position.

When the camera is still, the returned position is steady as a rock. However if I move the camera, during the transition it flickers in a small area around the cursor, and carries on flickering for a period even after the camera appears to have stopped visually. However its Transform is ever slightly jittering, and I can see the camera frustum jittering as well in the Game scene Gizmos.

 

Apologies for the delay!
Below is a package that reproduces the issue. You'll obviously need Cinemachine in the project, then:

 

Thanks very much for your help!