I'm not sure what is causing it, but it seems to be only Scrypt.

As hashflare reduced lifetime contracts to just 1 year, i think it may be a sign that they are suffering from liquidity problems and therefore resorting to having to reduce contract payouts to even stay afloat. But i could be just wrong, today could just be a very unlucky day for the pool that Hashflare mines at.

Why not contact support and tell them about the problem, since we have no definitive answers and i'm interested to know too?