I'm getting these too:

12:45:53.322952 INFO ----- BLOCK ADDED AS ALTERNATIVE ON HEIGHT 29101
12:45:53.322952 INFO id:        <8a8d81a0bbe6ed7514f4aaccdedfa5461d4851fee1f901849d178e2f1473528b>
12:45:53.322952 INFO PoW:       <6ef45f6fdca33e0d11f2a90ec8fa4fc30bc2f55a7d8b31356937d4731efb0000>
12:45:53.322952 INFO difficulty:        23418
12:45:53.402943 INFO [163.172.37.154:47767 OUT] SYNCHRONIZED OK
12:45:53.815050 WARNING [163.172.37.154:47767 OUT] Exception in connectionHandler: TcpConnection::read

My pool seems to be in sync if I compare the mined block height with the other pool

Using pre update daemon & wallet