Gledopto GL-C-008-1ID will not switch OFF

Hi guys,

I’ve got (now) 2 Gledopto GL-C-008’s which will not switch off. They stay dimmed. No clue why. I’ve reset them, no luck. I’ve used other PSU doesn’t resolve issue. I’ve just connected to other piece of LED-strip, no luck. I’ve moved both controllers in close proximity from Z2M coordinator, no luck. In MQTT Explorer and Home Assistant a see proper payload passing by. Z2M-logs ;

info  2020-07-12 18:14:45: MQTT publish: topic 'zigbee2mqtt/light_cove_bedroom', payload '{"state":"ON","brightness":254,"color":{"x":0.177,"y":0.655},"color_temp":148}'
debug 2020-07-12 18:14:47: Received MQTT message on 'zigbee2mqtt/light_cove_bedroom/set' with data '{"state": "ON", "color": {"x": 0.52, "y": 0.224}}'
debug 2020-07-12 18:14:47: Skipping state because of Home Assistant
debug 2020-07-12 18:14:47: Publishing 'set' 'color' to 'light_cove_bedroom'
info  2020-07-12 18:14:47: MQTT publish: topic 'zigbee2mqtt/light_cove_bedroom', payload '{"state":"ON","brightness":254,"color":{"x":0.52,"y":0.224},"color_temp":112}'
debug 2020-07-12 18:14:50: Received MQTT message on 'zigbee2mqtt/light_cove_bedroom/set' with data '{"state": "ON", "color": {"x": 0.545, "y": 0.234}}'
debug 2020-07-12 18:14:50: Skipping state because of Home Assistant
debug 2020-07-12 18:14:50: Publishing 'set' 'color' to 'light_cove_bedroom'
info  2020-07-12 18:14:50: MQTT publish: topic 'zigbee2mqtt/light_cove_bedroom', payload '{"state":"ON","brightness":254,"color":{"x":0.545,"y":0.234},"color_temp":44}'
debug 2020-07-12 18:14:50: Received MQTT message on 'zigbee2mqtt/light_cove_bedroom/set' with data '{"state": "ON", "color": {"x": 0.592, "y": 0.25}}'
debug 2020-07-12 18:14:50: Skipping state because of Home Assistant
debug 2020-07-12 18:14:50: Publishing 'set' 'color' to 'light_cove_bedroom'
info  2020-07-12 18:14:50: MQTT publish: topic 'zigbee2mqtt/light_cove_bedroom', payload '{"state":"ON","brightness":254,"color":{"x":0.592,"y":0.25},"color_temp":37}'
debug 2020-07-12 18:14:53: Received MQTT message on 'zigbee2mqtt/light_cove_bedroom/set' with data '{"state": "ON", "color": {"x": 0.484, "y": 0.481}}'
debug 2020-07-12 18:14:53: Skipping state because of Home Assistant
debug 2020-07-12 18:14:53: Publishing 'set' 'color' to 'light_cove_bedroom'
info  2020-07-12 18:14:54: MQTT publish: topic 'zigbee2mqtt/light_cove_bedroom', payload '{"state":"ON","brightness":254,"color":{"x":0.484,"y":0.481},"color_temp":41667}'
debug 2020-07-12 18:14:56: Received MQTT message on 'zigbee2mqtt/light_cove_bedroom/set' with data '{"state": "ON", "color": {"x": 0.19, "y": 0.64}}'
debug 2020-07-12 18:14:56: Skipping state because of Home Assistant
debug 2020-07-12 18:14:56: Publishing 'set' 'color' to 'light_cove_bedroom'
info  2020-07-12 18:14:56: MQTT publish: topic 'zigbee2mqtt/light_cove_bedroom', payload '{"state":"ON","brightness":254,"color":{"x":0.19,"y":0.64},"color_temp":156}'
debug 2020-07-12 18:14:58: Received MQTT message on 'zigbee2mqtt/light_cove_bedroom/set' with data '{"state": "OFF"}'
debug 2020-07-12 18:14:58: Publishing 'set' 'state' to 'light_cove_bedroom'

They will not switch off. What can cause this problem? I’ve got 41 devices hooked up to CC2530+2591 with Firmware DEFAULT_20190608 running Z2M v1.14.1.

EDIT; because I used default Firmware and already have 41 Zigbee-devices hooked up I’ve moved to the Source Routing Firmware. The link-quality of various devices improved tremendously. Some from low 30’s to 111. But still suffering the same switch off issue though.