In the readme file in the driver package it explains how to set up your chain in MIDI studio, as per below
drag the up/down arrows indicating the input/output port to make the following connections.
The 1st ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1"
The 2nd ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1 CTRL"
The 3rd ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1 USB1"
The 4th ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1 USB1 CTRL"
The 5th ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1 USB2"
The 6th ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1 USB2 CTRL"
The 7th ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1 USB3"
The 8th ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1 USB3 CTRL"
The 9th ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1 USB4"
The 10th ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1 USB4 CTRL"
Did you installs the driver?
https://www.roland.co.uk/support/by_product/mx-1/updates_drivers
In the readme file in the driver package it explains how to set up your chain in MIDI studio, as per below
drag the up/down arrows indicating the input/output port to make the following connections.
The 1st ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1"
The 2nd ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1 CTRL"
The 3rd ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1 USB1"
The 4th ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1 USB1 CTRL"
The 5th ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1 USB2"
The 6th ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1 USB2 CTRL"
The 7th ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1 USB3"
The 8th ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1 USB3 CTRL"
The 9th ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1 USB4"
The 10th ▲/▼ of the "MX-1" to the ▲/▼ of the added "MX-1 USB4 CTRL"