Remove Z-wave device

Devices
1

Hi

I have a few Neo Coolcam power plugs that are added. They are not visible in the App.
When I go to
https://developer.athom.com/tools/zwave
I see some unknown node’s.
There are 3 dot’s at the end of each z-wave node line. The option ‘Remove’ is greyed out (this is the case for every node, not only those that are unknown).

How can I remove them, hoping that I can add the plugs again without getting the error that they are already added ?

Using firmware v3.1.0

Thanks

2

Click test after a few seconds remove should be available.