Ohh.. it looks like usde.hashrate.eu was on the wrong chain. At the mean time the wallet was "protocolversion" : 1000400. I dont know exactly how this can happen. Now after resync(deleted all files except wallet.dat) the mined coins are not in the wallet ... obviously because the pool was on the wrong chain. Now the MPOS on the pool is -500k balance (only 12k ). These 500k coins cost ~0.30btc at this moment and i cannot afford to cover the loss. Again - the wallet was updated, the daemon was remaked, and a fork occur .. i dont know why. The usde pool will be closed because of this (i dont think anyone will mine there after this problem).