I have done this twice on two different USB drives and two different computers, with the same result.
I was trying to flash Pop OS onto a USB drive. I flashed it successfully but noticed the drive wasn’t bootable, so I went back in the partition manager to see that the drive was actually unallocated. I just tried to flash it again, but the flash fails. Moreover, if I try to reformat the drives, they can’t be formatted as NTFS or FAT32 anymore, but they get formatted as RAW, which I also don’t know how to fix. Again: this happened twice with two different drives. I should note I tried reinstalling BE between the two attempts with the different drives. I need help with both the flashing problem and the formatting one, thanks in advance.