Did the coin fork?
http://chainz.cryptoid.info/lgc/#Looks like many of the other pools are offline and there's only an UNKNOWN that's doing like 85% of the extraction.
Don't think there's a fork. But x11 multipools have hit us hard:(
Pretty sure its a large pool hoping from coin to coin. You'll notice the diff climbs extremely high and then they (the large pool I'm guessing) stops mining LGC and we don't get a block for 10 or so minutes at which point we find many in quick succession. It's probably an unknown chinese pool.
If it were a fork our wallets wouldn't sync up with the blockchain so as long as your wallet shows the same block as the explorer I think we are safe from a fork.
Trade my bit has been hitting LGC - usually hashing around 10-12 GH/s so I imagine it's unlikely it's the only one hopping to it at times.