I installed a shelly 2.5 in a 2-gang box, where it's connected to two lights. I had to fight with the device to get it configured and talking with the cloud, and have had nothing but problems since. The biggest issue is that the device will fail in the open state and becomes completely unresponsive. Turning the connected switches on and off does nothing and I have to cycle power to the device for that functionality to work again.
I had the device connected to the cloud, but it went offline in less than 30 minutes and I can't get it to communicate again. My Wi-Fi signal is strong at the device location so that shouldn't be the issue. While it was connected I could see power draw, the state of each relay, and I could control the relays through the app. It may be related, but when I have the lights on, the lights will turn off for 1-2 seconds and come back on. The frequency seems to be inconsistent as sometimes it happens about a minute apart, and other times the lights will stay on for several minutes without it happening.
During the connection process I did update the firmware, which caused the device to stop communicating and I had to do a factory reset to get it connected again.
Thanks in advance for trouble-shooting advice.