Hi all.
I have recreated this bug in a new project and got the same result.
I have a curve atlas I am using in my game, remapping scene texture to a curve. The specific curve to use is changed at runtime.
In a build, everything works as expected, however in editor there are no visible changes, as if the parameter remained unchanged.
Attached is two images showing the logic in question. The first is the material, the second is the player controller with the post process component.
let me know if anything is unclear.