External MIDI controller drop out using 2 simultaneous keyboards

[yul]

Hello! Mulab 7 user here.

I have a mini controller on my desk and a separate larger controller on the side.
Both are set up as midi inputs and are going to the same track when needed.

Sometimes the large controller (Keyrig 49) drops out and I cannot bring it back to the project easily (disconnect, restart etc).

Sometimes I can see the device in the midi input menu but the midi activity does not happen.

Not sure if this is because of Windows 10 drivers or because they are on the same USB hub or some other reason.

Please help. Thanks

[yul]

It looks like it might be my USB hub acting up. I will report back if anything else arises. Cheers