Power feed data not recording

Good morning.
I have just moved an emonpi and emontx from a house where it was recording and showing feed data from 2 clip on probes very successfully.
In the new location I have deleted the old data files and set up the new installation on 2 clip on probes. The installation process goes very well but the refresh feed size produces no change in feed size.
Instantaneous power values are shown and when I try and download the data for each feed the screen shows a probable file size but when the files are saved they are empty.
I should say that the Pi was shut down brutally in the old location but appeared to restart OK in the new location.
Where should I start looking?

Regards

Chris
Here is the emonhub log…

2016-06-09 05:57:50,839 INFO     RFM2Pi     Publishing: emonhub/rx/8/values 503,3,0,0,5.27,300,300,300,300,300,300,1
2016-06-09 05:57:50,842 INFO     RFM2Pi     Publishing: emonhub/rx/8/rssi -60
2016-06-09 05:57:50,844 DEBUG    RFM2Pi     6152 adding frame to buffer => [1465451870, 8, 503, 3, 0, 0, 5.2700000000000005, 300, 300, 300, 300, 300, 300, 1, -60]
2016-06-09 05:57:50,845 DEBUG    RFM2Pi     6152 Sent to channel' : ToEmonCMS
2016-06-09 05:57:52,806 DEBUG    RFM2Pi     Discarding RX frame 'unreliable content'? 157 162 208 65 248 3 201 3 135 240 90 98 244 116 144 108 205 151 230 225 121 (-104)
2016-06-09 05:57:53,426 DEBUG    RFM2Pi     Discarding RX frame 'unreliable content'? 16 185 5 153 247 5 49 36 121 56 91 67 245 15 103 159 120 163 85 158 52 (-102)
2016-06-09 05:58:00,150 DEBUG    RFM2Pi     Discarding RX frame 'unreliable content'? 138 201 49 210 191 6 75 62 179 14 104 203 122 118 12 161 238 219 182 223 24 (-104)
2016-06-09 05:58:00,255 DEBUG    RFM2Pi     Discarding RX frame 'unreliable content'? 19 240 43 164 24 55 249 134 140 178 155 193 156 245 170 26 2 94 28 129 128 (-103)
2016-06-09 05:58:00,361 DEBUG    RFM2Pi     6153 NEW FRAME : OK 8 250 1 1 0 0 0 0 0 16 2 184 11 184 11 184 11 184 11 184 11 184 11 1 0 0 0 (-63)
2016-06-09 05:58:00,364 DEBUG    RFM2Pi     6153 Timestamp : 1465451880.36
2016-06-09 05:58:00,364 DEBUG    RFM2Pi     6153 From Node : 8
2016-06-09 05:58:00,365 DEBUG    RFM2Pi     6153    Values : [506, 1, 0, 0, 5.28, 300, 300, 300, 300, 300, 300, 1]
2016-06-09 05:58:00,365 DEBUG    RFM2Pi     6153      RSSI : -63
2016-06-09 05:58:00,366 INFO     RFM2Pi     Publishing: emonhub/rx/8/values 506,1,0,0,5.28,300,300,300,300,300,300,1
2016-06-09 05:58:00,368 INFO     RFM2Pi     Publishing: emonhub/rx/8/rssi -63
2016-06-09 05:58:00,369 DEBUG    RFM2Pi     6153 adding frame to buffer => [1465451880, 8, 506, 1, 0, 0, 5.28, 300, 300, 300, 300, 300, 300, 1, -63]
2016-06-09 05:58:00,370 DEBUG    RFM2Pi     6153 Sent to channel' : ToEmonCMS
2016-06-09 05:58:09,841 DEBUG    RFM2Pi     6154 NEW FRAME : OK 8 243 1 1 0 0 0 0 0 24 2 184 11 184 11 184 11 184 11 184 11 184 11 1 0 0 0 (-61)
2016-06-09 05:58:09,845 DEBUG    RFM2Pi     6154 Timestamp : 1465451889.84
2016-06-09 05:58:09,846 DEBUG    RFM2Pi     6154 From Node : 8
2016-06-09 05:58:09,846 DEBUG    RFM2Pi     6154    Values : [499, 1, 0, 0, 5.36, 300, 300, 300, 300, 300, 300, 1]
2016-06-09 05:58:09,847 DEBUG    RFM2Pi     6154      RSSI : -61
2016-06-09 05:58:09,848 INFO     RFM2Pi     Publishing: emonhub/rx/8/values 499,1,0,0,5.36,300,300,300,300,300,300,1
2016-06-09 05:58:09,850 INFO     RFM2Pi     Publishing: emonhub/rx/8/rssi -61
2016-06-09 05:58:09,852 DEBUG    RFM2Pi     6154 adding frame to buffer => [1465451889, 8, 499, 1, 0, 0, 5.36, 300, 300, 300, 300, 300, 300, 1, -61]
2016-06-09 05:58:09,853 DEBUG    RFM2Pi     6154 Sent to channel' : ToEmonCMS
2016-06-09 05:58:13,772 DEBUG    RFM2Pi     Discarding RX frame 'unreliable content'? 158 125 123 45 236 125 81 246 45 170 121 64 215 237 83 115 28 240 15 186 200 (-101)
2016-06-09 05:58:13,877 DEBUG    RFM2Pi     Discarding RX frame 'unreliable content'? 173 207 97 255 114 52 86 220 74 163 79 51 225 238 240 74 238 134 175 153 209 (-103)
2016-06-09 05:58:16,190 DEBUG    RFM2Pi     Discarding RX frame 'unreliable content'? 165 116 101 186 151 46 123 246 18 223 29 12 102 25 186 227 192 127 0 42 204 (-100)
2016-06-09 05:58:19,340 DEBUG    RFM2Pi     Discarding RX frame 'unreliable content'? 8 243 1 1 0 0 0 0 20 2 184 11 184 11 184 11 184 11 184 11 184 (-59)

Hello Chris, I wonder if this is a similar issue the problem reported by @delphsoft here https://community.openenergymonitor.org/t/myelectric-setup-invalid-response-object-error

Do you see any errors in the emoncms.log view?
Does an EmonPi update and/or restart solve the issue?

Do the input and feed last values appear to update ok?
Under Setup > Administration > Server Information is WriterDaemon running?

Buffer150 feed points pending write
WriterDaemon is running with sleep 60s

Hi Trystan,

Also my emonPi has buffer empty today and feeds does not update. Can you show me or tell me where can i see this situation by command line?

My objective is monitoring log entries (by Nagios) to raise an event in this situations. Thanks you!