Scale - NVMe drives in USB case show same Serial Number

I have attached to NVMe drives in USB cases to my HPE Microserver Gen10+.
In the GUI in can only see one. The serial number for both drives shows as "0123456789ABCDEF" which is probably the cause for this.

If I use smartctl to check the drive info, the correct serial number is shown:
Drive 1:

Code:

smartctl -a /dev/sdf
smartctl 7.2 2020-12-30 r5155 [x86_64-linux-5.10.18+truenas] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Number: MTFDHBA256TCK-1AS1AABHA
Serial Number: UHPVN01ZRCD12Q
Firmware Version: HPS0V23
PCI Vendor/Subsystem ID: 0x1344
IEEE OUI Identifier: 0x00a075
Controller ID: 0
NVMe Version: 1.2.1

Drive 2:

Code:

smartctl -a /dev/sdg
smartctl 7.2 2020-12-30 r5155 [x86_64-linux-5.10.18+truenas] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Number: MTFDHBA256TCK-1AS1AABHA
Serial Number: UHPVN01ZRCCCQ8
Firmware Version: HPS0V23
PCI Vendor/Subsystem ID: 0x1344
IEEE OUI Identifier: 0x00a075
Controller ID: 0
NVMe Version: 1.2.1