Tested versions

occurred in ver 4.2.1 [b09f793] .

System information

Linux Ubuntu 21 - Godot 4.2.1 stable

Issue description

I tried making a post processing effect that needs to read the z buffer, I followed this tutorial from the docs.
and using that along Temporal AA causes jittering.

here's what it looks like with FXAA :

Steps to reproduce

enable TAA from the project settings.
then follow the Advanced Post-Processing tutorial from the docs.

Minimal reproduction project (MRP)

N/A