I've seen that as well with my Neoscrypt mining that the pool seems to show 0 hashrate, but the local miner is showing it mining just fine.  No errors are indications of rejected hashes or anything.  Must be an issue with the KlausT CCminer as that was the one I was using too.

I just rebenchmarked Tpruvot and Carsenk's update for Tribus and they are better hashrate anyways.  We'll see if they work better.