Dashboard is my number one use of HubConnect.
Homebridge is my second.
Both are receiving Contact Sensor events for me.
On one of my Remote Hubs, I have a Test Door Sensor. It's an Ecolink DW-ZWAVE2. It just sits here on my desk and I use it in a lot of Rules, etc. when I'm first building them to test out ideas, and so on. I haven't used it in weeks, maybe months but as soon as I brought a magnet near it, my phone went off because its still in that Rule I was working on a month ago.
On the Server Hub, it's showing, of course:
Logs show the messages arrive on Server:
app:22019-06-04 09:32:33.827 am infoReceived event from ZeeRadioLower/Test Door Sensor: [contact, open null] app:22019-06-04 09:32:22.123 am infoReceived event from ZeeRadioLower/Test Door Sensor: [contact, closed null]
And it's Dashboard tile goes on and off...