Unbelievable!!! It worked !!! on 24H2 !!!
My cpu is 7950x3d and I just had to set affinity like you said and the game started. It first started on 1 core just as a test.
I tested it with the first CCD and it works well, I guess I'll keep using just 8c16t for Aion thank you so much @TheAlmighty !!!
Everyone in my situation please read this because it might save your day! Have a great day!