It might not be related to your duplicate even issue, but my button has been responsive since 12/23 after the firmware update from a clearance SmartThings Hub V2.
I wouldn't quite count this as concluding my testing, I'd like to see two weeks of responsiveness.
If you have a ST hub it's worth connecting it to it after you've removed it from HE just to update the firmware.
Don't think the firmware was ready to leave the oven on these bad boys.
