Vault 2 doesn't work & flash drive doesn't work

I have several extreme usb 3 flash drives for backup because they include the vault software.

Originally they worked OK now when I plug in one drive and update it then remove it all the other drives  I plug in after read the same as the one I removed. Even if I reboot all the extremes read the same as the one I updated including what’s in the vault???

If I plug in my old  cruzer titanium plus, It reads correctly, It reads what’s in it, not what’s in the extreme. So what’s wrong with the extremes???