Resolved transform.position assign attempt for 'Camera' is not valid. Input position is { NaN, NaN, NaN }.

Hi,

first: I've been using Cinemachine for years now and I'm super happy with it.
Yesterday I did an overdue updating spree for on my game from Unity 2020 -> 2022 which to my surprise went almost flawlessly. The one thing I can't figure out is a tiny issue with CinemachineVirtualCamera not transitioning properly.

So I'm using Unity 2022.3.7f1 and Cinemachine 2.9.7

Virtual Camera Setup / Flow:
MenuCamera > GameStartCamera > PlayerFollowCamera
[player dies]
PlayerFollowCamera > GameOverCamera
[Play again]
GameOverCamera > GameStartCamera [!!ERROR!!] > PlayerFollowCamera [!!ERROR!!]

The error message I get after restarting the game is

Code (CSharp):

1.  
2. transform.position assign attempt for 'Camera' is not valid. Input position is { NaN, NaN, NaN }.
3.  

It gets hammered like 200-350 times into the console right after the GameStartCamera is activated and about a second or two into the PlayerFollowCamera being activated, then it just stops.
The rotation adapts correctly, just the position is stuck. When the error messages stop, the camera jumps into the correct position.
And on top of this: It sometimes works, approximately 1 out of 5 restarts.

I checked:
- Follow and Aim targets are set throughout (though dynamically through OnEnable() on the vcams)
- No huge positions (-100 -> +100) in transform.position of cameras or aim/follow GameObjects.
- FOV is the same for all vcams
- Clipping planes are 0.1 -> 1000 on all vcams

Would be thankful for any tips on how to solve this.

Cheers,
Tom

 

Absolutely. Where/How would I do that?

 

Just to wrap this up: The issue came from an active CinemachineCollider component without a set target.
Will also be fixed in upcoming version 2.9.8 of Cinemachine.
Thanks to @Gregoryl for help with the debugging!