We had some very bad luck with LTC mining today - we found only 70% of number of blocks which we expected to find based on amount of hashrate pointed at LTC. With lower hashrate today than in recent days, variance has more impact. As it always is with variance, our luck will change and we will probably get more than average luck very soon.
Also, I am working today on some changes allowing us for smarter splitting of hashrate, so that we will go back to mining some very small coins which we stopped mining few weeks ago. These small coins were totally unprofitable during this time, but some of them started to be profitable in recent days so it's worth to include them again - we just need to be very careful with amount of hashpower sent their way as they can't handle much. With improved hashrate splitting algorithm which will go live tonight, we will be able to do this and it will boost our profitability a bit. I'm testing it on a dev server and will deploy it to production tonight.