All devices my Sense has detected are shown with hexadecimal names in their bubbles in the web app (see picture below). I assume this is an internal identifier. This includes devices the Sense has auto-named and those I have given their own names. When I click on an identified device, it takes me to the device’s page, where the correct name is briefly shown at the top before changing back to the hex id #. The device doesn’t show at all on the list on the left of the “devices” page.
The Android app works just fine - this a web-only issue. It’s a new Sense, so I can’t tell if this is a new problem.
Apologies if this is a known issue - I wasn’t able to find anything relevant with a search.