I noticed something strange today too on cex/ghash.... my balance is stuck at 0.28433619 for almost 5 hours. Thats not something that usually happens. My hashrate hasn't dropped at all.

I am using their multipool. This is coinciding with a very high (98%) LTC mining time.. when usually LTC is only making up around 30-40% of the mining time.

I'll see what happens in the coming hours and contact their support if required.

Edit: balance started climbing again...