LightwaveRF binding errors and port issues

My issue seems similar to that described back in Aug 2015, but it seems the current version of OpenHAB (1.8.3) which I am using still has the problem with LightwaveRF bindings. Basically, it does not control the Link device (the new type, LW930) unless I swap the sending and receiving ports in the openhab.cfg file. However, even if I do that, and now I can control a relay and a dimmer, the dimmer/switch functions seem disconnected from each other, that is the switch does not know it is on when I have used the dimmer function.

Also, the log gets filled with many errors, like these below.

Is there a fix? Thank you, very much—I am new to this…

Rafal

2016-11-26 21:13:59.451 [ERROR] [l.internal.LightwaveRfWifiLink] - Error converting message: *!{"trans":127,"mac":"20:35:DA","time":1480194839,"pkt":"433T","fn":"dim","param":21,"room":1,"dev":1}
2016-11-26 21:13:59.463 [ERROR] [l.internal.LightwaveRfWifiLink] - Error converting message: *!{"trans":127,"mac":"20:35:DA","time":1480194839,"pkt":"433T","fn":"dim","param":21,"room":1,"dev":1}
2016-11-26 21:13:59.548 [INFO ] [.b.l.i.LightwaveRFSenderThread] - Ok message received for 215,!R1D1FdP21

2016-11-26 21:14:01.807 [ERROR] [l.internal.LightwaveRfWifiLink] - Error converting message: *!{"trans":128,"mac":"20:35:DA","time":1480194841,"pkt":"433T","fn":"on","room":1,"dev":1}
2016-11-26 21:14:01.818 [ERROR] [l.internal.LightwaveRfWifiLink] - Error converting message: *!{"trans":128,"mac":"20:35:DA","time":1480194841,"pkt":"433T","fn":"on","room":1,"dev":1}
2016-11-26 21:14:01.904 [INFO ] [.b.l.i.LightwaveRFSenderThread] - Ok message received for 216,!R1D1F1

2016-11-26 21:14:03.913 [ERROR] [l.internal.LightwaveRfWifiLink] - Error converting message: *!{"trans":129,"mac":"20:35:DA","time":1480194843,"pkt":"433T","fn":"on","room":1,"dev":1}
2016-11-26 21:14:03.924 [ERROR] [l.internal.LightwaveRfWifiLink] - Error converting message: *!{"trans":129,"mac":"20:35:DA","time":1480194843,"pkt":"433T","fn":"on","room":1,"dev":1}
2016-11-26 21:14:04.009 [INFO ] [.b.l.i.LightwaveRFSenderThread] - Ok message received for 217,!R1D1F1

2016-11-26 21:14:06.023 [ERROR] [l.internal.LightwaveRfWifiLink] - Error converting message: *!{"trans":130,"mac":"20:35:DA","time":1480194846,"pkt":"433T","fn":"off","room":1,"dev":1}
2016-11-26 21:14:06.035 [ERROR] [l.internal.LightwaveRfWifiLink] - Error converting message: *!{"trans":130,"mac":"20:35:DA","time":1480194846,"pkt":"433T","fn":"off","room":1,"dev":1}
2016-11-26 21:14:06.120 [INFO ] [.b.l.i.LightwaveRFSenderThread] - Ok message received for 218,!R1D1F0

2016-11-26 21:14:08.858 [ERROR] [l.internal.LightwaveRfWifiLink] - Error converting message: *!{"trans":131,"mac":"20:35:DA","time":1480194848,"pkt":"433T","fn":"dim","param":25,"room":1,"dev":1}
2016-11-26 21:14:08.870 [ERROR] [l.internal.LightwaveRfWifiLink] - Error converting message: *!{"trans":131,"mac":"20:35:DA","time":1480194848,"pkt":"433T","fn":"dim","param":25,"room":1,"dev":1}
2016-11-26 21:14:08.954 [INFO ] [.b.l.i.LightwaveRFSenderThread] - Ok message received for 219,!R1D1FdP25