are pools working properly
no blocks found for over an hour?
It can happen just by varience but also but also by the fact that this a small network of hashers.
a net work is at 25GH/s then 50GH/s miner starts mining as blocks are found Diff goes up until in balance for 75GH/s network.
Then Mr 50GH/s leaves mid block. diff is still set high so it will probably take much longer to finish block. next block diff adjusts up to max but still might not be enough so a less hard but still to hard for 25GH/s network to solve. but after a few block diff is back in balance.
You don't see that on bitcoin as 50GH/s is much too small it would need to be 100's of TH/s to be noticed. it would have to be in the PH/s range to mach my example.