I’ve been in contact with Sam from Arre, and he’s been super helpful in getting this resolved!
I just was on a call with him, where we tried a beta firmware build of the arre button, and that fixed the issue for me. I’m now able to pair it, use it in a flow, and it actually works!
I’m so happy this finally got resolved. I asked Sam, and if you’d like to also try this beta firmware build, you can email support@arrehome.com
I just got arre smart buttons yesterday and I had to do exact same thing. Add arre button to Home app, create a virtual switches in Homey Pro and expose them to HomeKit. In Home app configured for pressed to trigger virtual switches and in Homey created flow I needed that was triggered by state change on those virtual switches.
Weirdest thing is, aside that Homey doesn’t detect triggers from these buttons, for me when I try, I’m missing double press. It’s presents and available in every other ecosystem but Homey. Do you at least have double press as an option? Because I don’t.
