How to get rid of unwanted Switch entry on Dashboard

I have a stale/unwanted entry on the Dashboard, a switch, coming somehow from an eWeLink add-on that does show up with all 3 devices in the sidebar. If I delete the whole Dashboard configuration, it comes back with the stale entry. I can only get rid of it if I do the manual edit, but would like the auto-configuration to be back as the default. How can I clean this up? I’m not sure why it would only pick up the one device and then not even actually have the switch work from the Dashboard in the first place.

The best option would be to delete it in the add-on.

Second best: disable it on the device page.

If I delete it in the add-on, will the entire add-on disappear? I guess I’d have to add the whole eWeLink instance back again and start from scratch then, correct?
Thank you for the info!

Note added: I restarted HA as well as rebuilt and restarted the eWeLink add-on (not removing it and re-installing it), and the old Switch entry seems to have disappeared from the Dashboard.