I’ve just setup my UR824 today - and I’m also missing the HARDWARE option in the MIXER console…but I do get the Audio Hardware Setup option in Devices.
That is until I went to the burger button (next to the Configurations dropdown in the bar at the top)
and then deselected inputs, and re-selected inputs - hey presto! I cba to down the reinstall crap as I’d only just installed it. Haven’t tried this with the default ‘Yes’ option remembered… Does this work for you?