Again: DAG 128 epoch issue is related to ethermine.org pool only, it is not miner issue. It seems some of their servers use non-synced wallet. Ask pool support if they can fix this problem.
If you think that the reason is in my miner, try some other miner on this pool (to confirm that the issue is still present you may need to connect to the pool several times to catch bad server) or try different pool (to confirm that the issue is gone).
I'm contacting them right now.