Yes another Sonoff issue

If you are using the official Tasmota firmware, you may want to try this.

Features

  • Support for SmartThings (new) App
  • Real-time device status
  • Pure Tasmota & SmartThings integration (No need for additional MQTT bridge)
  • Virtual Device (for RF / IR devices that can be controlled by a RF / IR bridge)

Requirement

  • Samsung SmartThings Hub v2 or v3
  • Official Tasmota Firmware >=8.10