Bought a 3-gang dimmer. It's recognised, but has no controls

My Moes switch was often not responding at all. I’ve had problems with all of my Moes switches disconnecting, so I’m replacing them all.

I bought a new Zemismart 3-gang dimmer switch:

It connects straight away, but has no controls at all. I’ve had a look through the available quirks on github and can’t see anything for TS0601_TZE284 switch. The closest thing seems to be Tuya/ts0601_dimmer.py, but it only lists TS0601_TZE200 devices in the code.

Any idea what I can do next?