UR44 not found/ not recognised by Logic Pro

Hi,
I have a MacBook Pro ( 2019, intel silicon) running Sequoia 15.1.1. Most of the time I use a UR22C interface, but I need extra Audio inputs to record concert on Sunday ( 2 days time), so I reverted to my old UR44 interface. When I connected it Logic pro did not recognise it.
Please any ideas / suggestions on what to check / how to get it recognised?
Thanks