Cubase 12 and UR MK II

Hi everyone. I have Cubase 12 - updated - and have the UR MK II soundcard. For some reason I can’t get the headphones to work - dials are all good on the hardware…I’m using the Yamaha Steinberg USB ASIO. Can anyone help as all the videos online are from older versions and doesn’t seem to work.

Also my latency is: INPUT - 17MS - OUTPUT - 21MS - seems a bit high?

Thanks for any help,

Really appreciated,