Is anyone able to boot from USB flash drives using bios 1901 through to 2004 beta.

I have issues booting from USB flash drives using bios versions from 1901 > 2004 beta, using any of these bios versions i can no longer boot from USB flash drives, this is with the USB options in th bios set to "Auto", if i set the USB option to "Force FDD" it will boot from USB flash drives.

The thing is, with all bios versions from version 0701 > 1801 beta the "Auto" option for USB devices worked fine, with bios versions 1901 through to 2004 beta the "Auto" option no longer allows be to boot from USB flash drives.

Also with bios versions 1901 through to 2004 beta, if i try to use the Asus Crash Free Bios feature (Alt + F2) with a USB flash drive the system goes in to a loop searching for devices from which to recover the bios, i have renamed the bios file to "P5WDH.ROM" as instructed but the issues still persists, even after removing the motherboard battery and clearing CMOS many times.

As i said earlier, these issues have only started since bios version 1901 and above, so, something has changed from version 1901 and above for this to happen.

Any feedback appreciated, thanks!