I have a simple system...Aeotec door and window sensors, Aeon Doorbell and Zooz announcers. I have the latest update in my HE hub.
My rule uses a door/window opening as a trigger, and the announcers should ring once. When I first installed things (about 6 months ago), it worked fine, with almost-immediate responses. Now, however, there's a long delay between when the trigger happens (which logs in immediately) and the rings from the announcers. Sometimes the announcers ring several times before stopping. I even added to the rule to turn the announcers back off 1 second after they get turned on to try to stop the multiple rings.
While I don't understand what's going on, it seems like things were operating locally 6 months ago, but now are waiting for the cloud or something. (My internet connection works fine, with about 65Mbps down/6Mbps up.) I've tried rebooting the hub, and repairing the Zwave network. I've also tried adding two Aeotec repeaters, though my house is single story, 1750 ft, and gthe hub is central/high.
I've attached a log from this morning to show what I'm seeing (ignore Doorbell 1: it's the same Aeon doorbell as Doorbell 2, and I unplugged it to try to see what's going on.) As you can see, there's almost 30 seconds between the trigger and the Doorbell 2 ringing. In this case, the Zooz rang right away, but that's usually a longer delay also.
dev:362019-12-28 10:12:27.849 am info52 Doorbell 2: status is off
dev:362019-12-28 10:12:27.497 am info52 Doorbell 2: status is off
dev:362019-12-28 10:12:27.056 am info52 Doorbell 2: status is off
dev:362019-12-28 10:12:26.327 am info52 Doorbell 2: status is off
dev:362019-12-28 10:12:23.824 am info52 Doorbell 2: status is Doorbell Ringing
dev:362019-12-28 10:12:14.847 am info52 Doorbell 2: status is off
dev:362019-12-28 10:12:08.055 am info52 Doorbell 2: status is Doorbell Ringing
dev:362019-12-28 10:12:06.674 am info52 Doorbell 2: status is Doorbell Ringing
dev:652019-12-28 10:11:44.441 am info53 Zooz status is stopped
dev:652019-12-28 10:11:44.433 am info53 Zooz switch is off
app:92019-12-28 10:11:40.543 am infoDelay Over: Off: 51 Doorbell 1, 52 Doorbell 2, 53 Zooz --> delayed: 0:00:01
app:92019-12-28 10:11:39.433 am infoAction: Off: 51 Doorbell 1, 52 Doorbell 2, 53 Zooz --> delayed: 0:00:01
dev:652019-12-28 10:11:39.362 am info53 Zooz status is playing
dev:652019-12-28 10:11:39.353 am info53 Zooz switch is on
app:92019-12-28 10:11:39.279 am infoAction: On: 51 Doorbell 1, 52 Doorbell 2, 53 Zooz