full GPU acceleration m2 Pro doesn't work anymore

HI,

since a few months i can't use the full GPU acceleration anymore.

It worked until August 2023 or something like that.

BUT when i open Lr Classic, the full GPU acceleration is working.

I tried switching back to an old version of Lr but it didn't change.

mac mini 2022, m2 Pro, 16GB RAM, 10 Core CPU and 16 Core GPU

Metal 3 

Did Adobe change something or what happened?

as you can see in the files below, dark one is Lr, bright one is LrC