Problem using 2 identical midi controllers

Cubase 8.0.20 64 bits, Win 7

I’m trying to setup two Midi fighter Twisters as generic remote devices, but it seems Cubase is unable to properly differentiate both devices; they both show up in the midi in/out panel, but they both have the same name, and I can see the outputs of both devices are somehow virtually connected, enabling one also enables the other and vice versa.

As a consequence, I’m unable to assign the midi out of my second generic remote to my second midi controller.

both controllers seem properly identified by the windows device manager, and have a unique ID. Ableton Live doesn’t seem to have a problem configuring both devices, so it does seem to be cubase specific.

I already had the same issue with Cubase 7.5, I found this, which is exactly the same issue : Steinberg Forums

Please let me know if there is anything I can provide to help.

Many thanks,
Damien