I've noticed a huge increase in duplicate/rejected shares over the last couple of hours. I was mining happily before that so I don't think it's a miner setup issue. Anybody else seeing high rejects? I'm getting 60+%
I'm afraid this is a bug which I introduced earlier today when changing something in the pool software. I deployed a change helping with some disconnection issues thick some small percent of miners had, but it turns out the change had also a negative side effect.
I'm working on solving this right now and I expect to deploy a fix within an hour.