RFXCOM - 'Cannot delegate command' error messages

I’m seeing RFX error message in the openhab.log file, although functionality appears to work without any issues.

Is this anything to be concerned about?

2017-02-26 22:00:17.830 [DEBUG] [binding.rfxcom.handler.RFXComHandler] - Received channel: rfxcom:lighting5:8acb37b7:dimmingLevel, command: 41
2017-02-26 22:00:17.834 [DEBUG] [g.rfxcom.handler.RFXComBridgeHandler] - Transmitting message 'Raw data = unknown, Packet type = LIGHTING5, Seq number = 7, Sub type = LIGHTWAVERF, Device Id = 131329.1, Command = SET_LEVEL, Dim level = 13, Signal level = 0’
2017-02-26 22:00:18.399 [DEBUG] [g.rfxcom.handler.RFXComBridgeHandler] - Message received: Raw data = 0402010700, Packet type = TRANSMITTER_MESSAGE, Seq number = 7, Sub type = RESPONSE, Response = ACK
2017-02-26 22:00:18.399 [DEBUG] [g.rfxcom.handler.RFXComBridgeHandler] - Transmitter response received: Raw data = 0402010700, Packet type = TRANSMITTER_MESSAGE, Seq number = 7, Sub type = RESPONSE, Response = ACK
2017-02-26 22:00:18.399 [DEBUG] [g.rfxcom.handler.RFXComBridgeHandler] - Command successfully transmitted, ‘ACK’ received
2017-02-26 22:00:18.399 [WARN ] [ome.core.thing.internal.ThingManager] - Cannot delegate command ‘41’ for item ‘Light_FF_Landing_Light’ to handler for channel ‘rfxcom:lighting4:83da5dc4:command’, because no thing with the UID ‘rfxcom:lighting4:83da5dc4’ could be found.
2017-02-26 22:00:18.400 [WARN ] [ome.core.thing.internal.ThingManager] - Cannot delegate update ‘41’ for item ‘Light_FF_Landing_Light’ to handler for channel ‘rfxcom:lighting4:83da5dc4:command’, because no thing with the UID ‘rfxcom:lighting4:83da5dc4’ could be found.
2017-02-26 22:00:18.814 [DEBUG] [binding.rfxcom.handler.RFXComHandler] - Received channel: rfxcom:lighting5:8acb37b7:dimmingLevel, command: 10
2017-02-26 22:00:18.814 [DEBUG] [g.rfxcom.handler.RFXComBridgeHandler] - Transmitting message 'Raw data = unknown, Packet type = LIGHTING5, Seq number = 8, Sub type = LIGHTWAVERF, Device Id = 131329.1, Command = SET_LEVEL, Dim level = 4, Signal level = 0’
2017-02-26 22:00:19.704 [DEBUG] [g.rfxcom.handler.RFXComBridgeHandler] - Message received: Raw data = 0402010800, Packet type = TRANSMITTER_MESSAGE, Seq number = 8, Sub type = RESPONSE, Response = ACK
2017-02-26 22:00:19.704 [DEBUG] [g.rfxcom.handler.RFXComBridgeHandler] - Transmitter response received: Raw data = 0402010800, Packet type = TRANSMITTER_MESSAGE, Seq number = 8, Sub type = RESPONSE, Response = ACK

I have the same problem with RFXCOM binding :
Added a coco remote swtich and configured through PaperUI discovery. I get this error message in the log file every time the switch is actuated :
09:06:16.857 [WARN ] [ome.core.thing.internal.ThingManager] - Cannot delegate update 'OFF' for item 'cocoSchakelaarTv' to handler for channel 'rfxcom:lighting2:238adf67:coco_schakelaar:command', because no thing with the UID 'rfxcom:lighting2:238adf67:coco_schakelaar' could be found.

How to avoid this error message ?

I found i had old instances of my RFXCOM adapter and it was devices attached to this that gave the error. I cleared our the old Things that were no longer required, and sorted the Links out too, and now i havent got those errors.

Hope this helps.