I have almost the same problem. Items don't get added to the inbox when a new node is found.
Also when i add them manualy, things don't work(it was working earlier) So i think something changed for the bindings. So at the moment the MySensors binding is not working with latest snapshot(#597)
My Debug log:
2016-11-20 01:43:15.119 [DEBUG] [ernal.handler.MySensorsBridgeHandler] - Initialization of the MySensors bridge
2016-11-20 01:43:15.119 [DEBUG] [col.serial.MySensorsSerialConnection] - Set skip check on startup to: false
2016-11-20 01:43:15.119 [DEBUG] [col.serial.MySensorsSerialConnection] - Enabling connection watchdog
2016-11-20 01:43:15.126 [DEBUG] [ternal.factory.MySensorsCacheFactory] - Cache file: given_ids.cached exist.
2016-11-20 01:43:15.126 [DEBUG] [ternal.factory.MySensorsCacheFactory] - Cache (given_ids) content: [32, 52, 51, 40, 36, 35]
2016-11-20 01:43:15.126 [DEBUG] [ernal.handler.MySensorsBridgeHandler] - Initialization of the MySensors bridge DONE!
2016-11-20 01:43:15.127 [DEBUG] [col.serial.MySensorsSerialConnection] - Connecting to /dev/ttyUSB21 [baudRate:9600]
2016-11-20 01:43:15.127 [DEBUG] [col.serial.MySensorsSerialConnection] - Final port list: /dev/ttyUSB21
2016-11-20 01:43:15.133 [DEBUG] [col.serial.MySensorsSerialConnection] - Successfully connected to serial port.
2016-11-20 01:43:15.133 [DEBUG] [col.serial.MySensorsSerialConnection] - Waiting 3 seconds to allow correct reset trigger on serial connection opening
2016-11-20 01:43:18.235 [DEBUG] [rs.internal.protocol.MySensorsWriter] - Sending to MySensors: 0;0;3;0;2;
2016-11-20 01:43:18.246 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;2;2.0.0
2016-11-20 01:43:18.246 [DEBUG] [col.serial.MySensorsSerialConnection] - Good,Gateway is up and running! (Ver:2.0.0)
2016-11-20 01:43:18.247 [INFO ] [col.serial.MySensorsSerialConnection] - Successfully connected to MySensors Bridge.
2016-11-20 01:43:18.247 [WARN ] [col.serial.MySensorsSerialConnection] - Network Sanity Checker thread disabled from bridge configuration
2016-11-20 01:43:18.258 [DEBUG] [ternal.handler.MySensorsThingHandler] - Configuration: node 32, chiledId: 0, revertState: false
2016-11-20 01:43:18.259 [DEBUG] [ternal.handler.MySensorsThingHandler] - Configuration: node 35, chiledId: 0, revertState: false
2016-11-20 01:43:18.259 [DEBUG] [ternal.handler.MySensorsThingHandler] - Configuration: node 51, chiledId: 3, revertState: false
2016-11-20 01:43:18.259 [DEBUG] [ternal.handler.MySensorsThingHandler] - Configuration: node 52, chiledId: 3, revertState: false
2016-11-20 01:43:18.259 [DEBUG] [ternal.handler.MySensorsThingHandler] - Configuration: node 35, chiledId: 3, revertState: false
2016-11-20 01:43:18.260 [DEBUG] [ternal.handler.MySensorsThingHandler] - Configuration: node 40, chiledId: 0, revertState: true
2016-11-20 01:43:18.260 [DEBUG] [ternal.handler.MySensorsThingHandler] - Configuration: node 36, chiledId: 3, revertState: false
2016-11-20 01:43:18.260 [DEBUG] [ternal.handler.MySensorsThingHandler] - Configuration: node 36, chiledId: 1, revertState: false
2016-11-20 01:43:18.260 [DEBUG] [ternal.handler.MySensorsThingHandler] - Configuration: node 36, chiledId: 0, revertState: false
2016-11-20 01:43:18.260 [DEBUG] [ternal.handler.MySensorsThingHandler] - Configuration: node 32, chiledId: 3, revertState: false
2016-11-20 01:43:18.261 [DEBUG] [ternal.handler.MySensorsThingHandler] - Configuration: node 52, chiledId: 4, revertState: false
2016-11-20 01:43:18.261 [DEBUG] [ternal.handler.MySensorsThingHandler] - Configuration: node 52, chiledId: 5, revertState: false
2016-11-20 01:43:18.262 [DEBUG] [ternal.handler.MySensorsThingHandler] - Configuration: node 32, chiledId: 1, revertState: false
2016-11-20 01:43:18.262 [DEBUG] [ternal.handler.MySensorsThingHandler] - Configuration: node 35, chiledId: 1, revertState: false
2016-11-20 01:43:18.263 [DEBUG] [ternal.handler.MySensorsThingHandler] - Configuration: node 51, chiledId: 4, revertState: false
2016-11-20 01:43:20.379 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:SANCHK:OK
2016-11-20 01:43:28.247 [DEBUG] [col.serial.MySensorsSerialConnection] - Bridge is connected, connection skipped
2016-11-20 01:43:20.379 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:SANCHK:OK
2016-11-20 01:43:28.247 [DEBUG] [col.serial.MySensorsSerialConnection] - Bridge is connected, connection skipped
2016-11-20 01:43:38.248 [DEBUG] [col.serial.MySensorsSerialConnection] - Bridge is connected, connection skipped
2016-11-20 01:43:48.248 [DEBUG] [col.serial.MySensorsSerialConnection] - Bridge is connected, connection skipped
2016-11-20 01:43:58.249 [DEBUG] [col.serial.MySensorsSerialConnection] - Bridge is connected, connection skipped
2016-11-20 01:44:01.834 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:READ 32-32-0 s=255,c=3,t=22,pt=5,l=4,sg=0:19562725
2016-11-20 01:44:01.845 [DEBUG] [rs.internal.protocol.MySensorsReader] - 32;255;3;0;22;19562725
2016-11-20 01:44:02.591 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:READ 32-32-0 s=1,c=1,t=0,pt=7,l=5,sg=0:18.2
2016-11-20 01:44:02.591 [DEBUG] [rs.internal.protocol.MySensorsReader] - 32;1;1;0;0;18.2
2016-11-20 01:44:02.683 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:READ 32-32-0 s=2,c=1,t=4,pt=7,l=5,sg=0:1000.8
2016-11-20 01:44:02.683 [DEBUG] [rs.internal.protocol.MySensorsReader] - 32;2;1;0;4;1000.8
2016-11-20 01:44:02.764 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:READ 32-32-0 s=0,c=1,t=1,pt=7,l=5,sg=0:52.1
2016-11-20 01:44:02.774 [DEBUG] [rs.internal.protocol.MySensorsReader] - 32;0;1;0;1;52.1
2016-11-20 01:44:02.855 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:READ 32-32-0 s=2,c=1,t=5,pt=0,l=6,sg=0:cloudy
2016-11-20 01:44:02.856 [DEBUG] [rs.internal.protocol.MySensorsReader] - 32;2;1;0;5;cloudy
2016-11-20 01:44:08.249 [DEBUG] [col.serial.MySensorsSerialConnection] - Bridge is connected, connection skipped
2016-11-20 01:44:18.249 [DEBUG] [col.serial.MySensorsSerialConnection] - Bridge is connected, connection skipped
2016-11-20 01:44:20.380 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:SANCHK:OK
2016-11-20 01:44:27.370 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:READ 52-52-0 s=4,c=1,t=0,pt=7,l=5,sg=0:15.1
2016-11-20 01:44:27.370 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:ACK msg
2016-11-20 01:44:27.380 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:SEND 0-0-52-52 s=4,c=1,t=0,pt=7,l=5,sg=0,ft=0,st=ok:15.1
2016-11-20 01:44:27.381 [DEBUG] [rs.internal.protocol.MySensorsReader] - 52;4;1;0;0;15.1
2016-11-20 01:44:27.522 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:READ 52-52-0 s=3,c=1,t=1,pt=7,l=5,sg=0:49.3
2016-11-20 01:44:27.522 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:ACK msg
2016-11-20 01:44:27.563 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;!TSP:MSG:SEND 0-0-52-52 s=3,c=1,t=1,pt=7,l=5,sg=0,ft=0,st=ok:49.3
2016-11-20 01:44:27.564 [DEBUG] [rs.internal.protocol.MySensorsReader] - 52;3;1;0;1;49.3
2016-11-20 01:44:28.250 [DEBUG] [col.serial.MySensorsSerialConnection] - Bridge is connected, connection skipped
2016-11-20 01:44:30.102 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:READ 51-51-0 s=4,c=1,t=0,pt=7,l=5,sg=0:4.5
2016-11-20 01:44:30.102 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:ACK msg
2016-11-20 01:44:30.113 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:SEND 0-0-51-51 s=4,c=1,t=0,pt=7,l=5,sg=0,ft=0,st=ok:4.5
2016-11-20 01:44:30.113 [DEBUG] [rs.internal.protocol.MySensorsReader] - 51;4;1;0;0;4.5
2016-11-20 01:44:30.204 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:READ 51-51-0 s=3,c=1,t=1,pt=7,l=5,sg=0:91.8
2016-11-20 01:44:30.204 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:ACK msg
2016-11-20 01:44:30.255 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;!TSP:MSG:SEND 0-0-51-51 s=3,c=1,t=1,pt=7,l=5,sg=0,ft=0,st=fail:91.8
2016-11-20 01:44:30.255 [DEBUG] [rs.internal.protocol.MySensorsReader] - 51;3;1;0;1;91.8
2016-11-20 01:44:38.250 [DEBUG] [col.serial.MySensorsSerialConnection] - Bridge is connected, connection skipped
2016-11-20 01:44:42.816 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:READ 35-35-0 s=255,c=3,t=0,pt=1,l=1,sg=0:57
2016-11-20 01:44:42.826 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:ACK msg
2016-11-20 01:44:42.826 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:SEND 0-0-35-35 s=255,c=3,t=0,pt=1,l=1,sg=0,ft=0,st=ok:57
2016-11-20 01:44:42.837 [DEBUG] [rs.internal.protocol.MySensorsReader] - 35;255;3;0;0;57
2016-11-20 01:44:42.908 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:READ 35-35-0 s=3,c=1,t=38,pt=7,l=5,sg=0:2.6600
2016-11-20 01:44:42.908 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:ACK msg
2016-11-20 01:44:42.918 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:SEND 0-0-35-35 s=3,c=1,t=38,pt=7,l=5,sg=0,ft=0,st=ok:2.6600
2016-11-20 01:44:42.919 [DEBUG] [rs.internal.protocol.MySensorsReader] - 35;3;1;0;38;2.6600
2016-11-20 01:44:43.040 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:READ 35-35-0 s=1,c=1,t=0,pt=7,l=5,sg=0:18.9
2016-11-20 01:44:43.040 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;TSP:MSG:ACK msg
2016-11-20 01:44:43.081 [DEBUG] [rs.internal.protocol.MySensorsReader] - 0;255;3;0;9;!TSP:MSG:SEND 0-0-35-35 s=1,c=1,t=0,pt=7,l=5,sg=0,ft=0,st=ok:18.9
2016-11-20 01:44:43.081 [DEBUG] [rs.internal.protocol.MySensorsReader] - 35;1;1;0;0;18.9
As you can see, i recieve messages from the gateway. No items are updated.