Dashboard shows Interface Speed Gen1 for 600GB VelociRaptor

Hello!

I use the latest Dashboard v3.2.2.9 and I have 2x 600GB and 2x 1TB VelociRaptors connected. On two different mainboards it strangely shows “Gen1 (1.5Gb/s)” for both 600GB VelociRaptors, but not the 1TB models which are correctly “Gen3 (6Gb/s)”.

It is the same on these configurations:

ASUS X470 Mainboard, latest BIOS, Win10 20H2 x64
GIGABYTE B550 Mainboard, latest BIOS, Win10 20H2 x64

WD1000DHTZ:
image

WD6000HLHX:
image

There are no jumpers placed on pins 5-6, which would enable Gen2 (3Gb/s) though.

Is this just a cosmetic bug or what could be happening here?