Yep, it appears as though SXC has forked.
I will contact the SXC devs about this. Hopefully they will know what to do.
Hey thanks for the fast reply! Good luck. In the meantime I'll be mining WDC.
Noticed this a few hours ago as well, according to "my stats" I should have 5.5kSXC, but I only have 4.8k in my wallet. Updates in the News-feed on the home page when it's been fixed would be very welcome. Think I'll stick to WDC for the time being as most other miners seem to be doing

I think this has been fixed. I got my payouts (although a day late)