Hi could you please clarify if something has been changed in the code regarding even cores load and affinity?

I was using it all the time without any issues and now after the update it started to behave incorrectly.
After server start it's all fine and all cores are loaded more or less evenly, but after several minutes it goes like that until next restart.
Any ideas? (I run 2 instances, each using 4 cores, one with 15 affinity, second with 240)

I've tested it with my second workstation on Ryzen 3900x and it's all the same there...
I've also tried to disable that in server settings and then just assign cores manually on a running instances via task manager - it's absolutely the same behavior