I have a 13900K and I am affected. Out of the box BIOS settings cause my CPU to fail Prime95, and it's always the same CPU cores failing. Lowering the power limit slightly will make it stable. I intended to better refrigerate the CPU and change the power limit back to the default and if the problems continued I would RMA the CPU, but now I'm not so sure that the BIOS is not pushing it beyond the operating limits.
Can I ask what mobo vendor? Do you know what power limits the BIOS was targeting that caused the error?
On my Asus/14900k, it was uncapping PL1/2 and I saw absurd temps and power every time anything even touched the CPU. I programmed PL1/2 to 125/253w per Intel ARK and everything normalized.
I did not do Prime95 at the insane default power limits but I suspect similar.
