Why does my Asus Prime X470-Pro Mobo force 1T command rate when the memory speed is above 2400MHz? I've installed the Feb. 28th 2019 BIOS (4406) and it just won't work. Is this being done on purpose?

Clarification: With the memory speed at any speed above 2400MHz, I can set the command rate to 2T in the BIOS, and when Windows boots, CPU-Z reports that the command rate is instead 1T. Until the speed is lowered to 2400MHz or below.