I think there might be an issue with the miner or with the pool.
I left my 3 GPUs mining at 40.823 sols/s the whole night, and when I woke up I had less than 0.0007 zecs on my balance.
In the meanwhile my CPU miner mining at 4 sols/s on coinmine.pl made 0.002 zecs.
And kept on checking my wallet on coinsforall (
http://coinsforall.io/#!/coin/ZCASH/wallet/t1SNw5DKRVjWwJnJbzLPq28vtpMMDTiVYAx) every few minutes and the balance was not updating.
I decided to restart the miner app and balance finally seem to be updating now.
But the strange part is that when I was looking into my wallet info I would see the correct mining speed. Everything seemed to be connected right, the only thing not updating was the balance. I feel like someone was using my GPUs for free.
Did you experience similar problems?