Gosund UP111 stopped working with LocalTuya

I had a problem with a Gosund UP111 wifi socket appearing twice in HA and causing intermittent problems with automations. It was in both the Tuya cloud and Local Tuya integrations. I deleted it from both, added it to my Tuya account and it now works again. However, I want to move it to LocalTuya. Configure → Add Device finds it ok but the switch is greyed out and doesn’t work. I’ve tried adding it manually (I have the local key and everything) but get the same thing.

In Github, there’s a comment that it’s 'covered by smartplugv2. What does this mean?

Github