I've been having issues with all BIOS past 1302. The way I fixed this issue was by manually setting the voltages:
SOC = 1.0v
VDDG CCD = 0.950v
VDDG IOD = 0.950v
CLDO VDDP = 0.900v
You can increase each by .05v if you still see the WHEA errors.
This was with BIOS 2402 beta (C8H Wifi)