That reminded me. I did have one that I thought failed. Someone recently posted on this thread how he fixed it. So, maybe mine wasn't broken (and maybe yours isn't either).
At some point I became disenchanted with Zigbee mesh, and even Z-wave mesh. Zigbee because the mains powered repeaters, or rather, the combination of them and the Hubitat C8, seemed to be causing frequent Zigbee radio reboots. A complete changeout to the latest Sengled plugs didn't help. So, I don't have powered Zigbee devices anymore. All are battery and talk directly to the hub.
I would do something similar with Z-wave, if I had the money. Z-Wave Long Range doesn't mesh-they talk direct to hub. All my switches, outdoor motions, and plugs are Z-wave. Money.
Here's my Zigbee chart 
