I've updated from 7.2.3 to 7.3.2 and have the same issue. Reboot or swapping ports didn't help. My USB stick is fine: it reads normally when plugged into a PC, so it's not a dead/corrupt drive. Reverting the bz* files on the flash to 7.2.3 works fine. Hardware: Aoostar WTR Pro, AMD Ryzen 7 5825U, board AR5000-MI2, BIOS 0.11 x64.