Unable to auto detect WeMo wall light switch

[buddingmonkey]

I wrote a script to detect if my WeMo light switch is pressed, and to turn another WeMo switch. It's been working fine until a week or two ago. Here is a snippet of the code I wrote:

import pywemo

devices = pywemo.discover_devices()

vanity = next(x for x in devices if x.name == "Vanity")

The code no longer detects my wall switch (Vanity)

Even using the debug mode produces the following output:

[<WeMo Switch "Upstairs Hallway">, <WeMo Switch "Bathroom Hutch">, <WeMo Switch "Nursery Night Light">]

[esev]

Just to help us debug, can you still control the 'Vanity' device from the WeMo mobile app?

[buddingmonkey]

Yes. It works on the iOS app.