Someone is either going to know this or not 😉
When you plug a usb device into a system on a network that has used the next available drive letter after hardware A,B,C,D (E network drive)
USB devices take the same drive letter, you have to go into My computer > Manage > Disk Management > and change the usb drives letter to any other drive letter to get it to work.
How can you make it stay with that letter, changing the mapped drive letter is not an option at this stage (scripts attached to that drive letter) Why has microsoft allowed this to continue?