Can we do anything about flickering in engine bells with temporal antialiasing?

It doesn’t seem like a standard z-fighting issue. Why do the plumes and the bells seem to be drawn in different positions relative to each other?  Is it specific to volumetric shaders? Are we using the wrong camera/projection matrix somewhere?

<img width="2560" height="1440" alt="Image" src="https://github.com/user-attachments/assets/64192afa-cdc7-4475-9751-4e59ff846b6c" />