Guys,

I updated the wallet (14/08) and no stakes from this day.

In the debug.log I can see:

2018-08-15 19:17:44 ProcessNewBlock : ACCEPTED in 47 milliseconds with size=506
2018-08-15 19:17:47 ResendWalletTransactions()
2018-08-15 19:18:24 ERROR: IsBlockPayeeValid: invalid mn payment detected CTransaction(hash=16a89e8ed1, ver=1, vin.size=1, vout.size=4, nLockTime=0)
    CTxIn(COutPoint(062e937fa8e31cce24ed6b1f565c36b7b8f9fbebf62fbe35483a42d4bf32511d, 85), scriptSig=3045022100935179aa425442)
    CTxOut(nValue=0.00000000, scriptPubKey=)
    CTxOut(nValue=33668.98666666, scriptPubKey=03979fac755065065d3613ef524bd1)
    CTxOut(nValue=864.00000000, scriptPubKey=OP_DUP OP_HASH160 f2f11f046318)
    CTxOut(nValue=150.00000000, scriptPubKey=OP_DUP OP_HASH160 43d907df7305

I dont know is it related to stakes, but before never seen this error.