4 MNs of mine crashed yesterday almost on the same time, all was using v12.47
It makes one node without payment for 20 days straight
To be honest I never experienced the same situation since the first time I opened my MN 8 months ago.
Here is the last log from debug.log of each MN:
MN1
015-08-23 06:51:07 CActiveMasternode::SendMasternodePing() - Relay Masternode Ping vin = CTxIn(COutPoint(d19db4048a102838dd000412e45119d311d90b01f077082bde224c4830f1ba53, 1), scriptSig=)
2015-08-23 06:51:52 mnb - Got NEW Masternode entry - 012cec97f2e4c4db6e0c7fd445ec8f8bebd35cdfc57d7baebec8feda698dd86f - 108.61.167.246:9999 - CTxIn(COutPoint(6ab09587c49daeb8bb6f0de1291d7219dad75693e3cb58b999848b9efc0d69b5, 1), scriptSig=) - 1439985732
2015-08-23 06:52:20 receive version message: /darkcoinseeder:0.1.2/: version 70103, blocks=320000, us=178.62.110.62:9999, peer=1531
2015-08-23 06:52:27 receive version message: /Satoshi:0.8.6/: version 70076, blocks=288800, us=178.62.110.62:9999, peer=1532
2015-08-23 06:52:29 socket send error Bad file descriptor (9)
2015-08-23 06:52:29 receive version message: /Satoshi:0.8.6/: version 70076, blocks=288800, us=178.62.110.62:9999, peer=1533
2015-08-23 06:53:53 receive version message: /darkcoinseeder:0.1.2/: version 70103, blocks=320000, us=178.62.110.62:9999, peer=1534
MN2
2015-08-23 05:13:18 receive version message: /darkcoinseeder:0.1.2/: version 70103, blocks=320000, us=46.101.39.160:9999, peer=1878
2015-08-23 05:13:28 CActiveMasternode::SendMasternodePing() - Relay Masternode Ping vin = CTxIn(COutPoint(48c109789d65732fc7093391699ec5f5a7e6eebda46d1f9d3647f9cea30bb538, 1), scriptSig=)
2015-08-23 05:13:43 CreateNewLock - New Transaction Lock 0639fd5e9a4cf893d1b6f0da72cac05adf1e2c695ea78ef347651dd92b7a1004 !
2015-08-23 05:13:43 ProcessMessageInstantX::ix - Transaction Lock Request: 162.243.205.212:9999 /Dash Core:0.12.0.47/ : accepted 0639fd5e9a4cf893d1b6f0da72cac05adf1e2c695ea78ef347651dd92b7a1004
2015-08-23 05:13:45 mnget - Sent Masternode winners to 104.131.193.7:51547
MN3
2015-08-23 07:33:31 CBudgetManager::CheckAndRemove
2015-08-23 07:33:31 ProcessNewBlock : ACCEPTED
2015-08-23 07:34:21 CActiveMasternode::SendMasternodePing() - Relay Masternode Ping vin = CTxIn(COutPoint(0647b3e45cb3586364506c45b0c6631b5e8193c5b0c2ecfd5fed5d23bef4c860, 0), scriptSig=)
2015-08-23 07:36:03 CheckBlock() : skipping transaction locking checks
2015-08-23 07:36:03 CheckBlock() : skipping transaction locking checks
2015-08-23 07:36:03 CheckBlock() : skipping transaction locking checks
2015-08-23 07:36:03 UpdateTip: new best=00000000001481c9b88736ab126d43b51d4cda291403c5d267946deae4fc29e0 height=324019 log2_work=61.660689 tx=1307825 date=2015-08-23 07:35:22 progress=0.999998 cache=2399
2015-08-23 07:36:03 ProcessNewBlock : ACCEPTED
2015-08-23 07:36:06 CMasternodePaymentWinner::IsValid - Masternode not in the top 10 (11)
2015-08-23 07:36:06 mnw - invalid message - Masternode not in the top 10 (11)
MN4
2015-08-23 07:11:24 CheckBlock() : skipping transaction locking checks
2015-08-23 07:11:24 CheckBlock() : skipping transaction locking checks
2015-08-23 07:11:24 CheckBlock() : skipping transaction locking checks
2015-08-23 07:11:24 UpdateTip: new best=000000000014f13c33e2e3d0c17b1fa882dcfe002264353f0ddf487c9c835d31 height=324008 log2_work=61.660647 tx=1307801 date=2015-08-23 07:09:56 progress=0.999995 cache=2333
2015-08-23 07:11:25 ProcessNewBlock : ACCEPTED
2015-08-23 07:11:29 CheckBlock() : skipping transaction locking checks
2015-08-23 07:11:29 CheckBlock() : skipping transaction locking checks
2015-08-23 07:11:29 CheckBlock() : skipping transaction locking checks
2015-08-23 07:11:29 UpdateTip: new best=0000000000028f6a356961272b3ede51f87cded63ae713b6f20a9122521bd142 height=324009 log2_work=61.660651 tx=1307803 date=2015-08-23 07:11:19 progress=0.999999 cache=2335
2015-08-23 07:11:29 ProcessNewBlock : ACCEPTED