New WEMO Switch will not show up in app. Have all below for years and working and semi stable. Bought this extra one now - same model as others. It completed setup,
Belkin Official Support - Meet the Wemo® Smart Light Switch, F7C030
What do Different Light Indicators on my Wemo Light Switch Mean?
New WeMo Light Switches connect with Apple HomeKit at CES 2019 - CNET
HELP!! Multiple Wemo switches are suddenly non-functional : r/WeMo
Wemo Smart Switch With Thread Surfaces - Homekit News and Reviews