I had the two miners open when I was benchmarking Neoscrypt.  After I removed the NeoScrypt algo, everything else seemed to work as well as NemosMiner typcially has.  Palgin's HSRminer also didn't close when the benchmarking should have been finshed, but I've often found that to be the case with other algos/miners in NemosMiner as well.

When benchmarking, if the miner doesn't close after the second interval it will likely run until you stop it.  When I see that, I shut the script down and restart, that usually resolves the issue.... although it didn't in the case of HSRminer.

So ya, +1 here to remove it until you can figure out what the problem is.  It's too bad, it's the fastest Neoscrypt miner I've tested.