Your wallet has gone onto a forked chain which is dead at block 1735384. The true chain is not at that height yet so some wallets are not re-organizing to the correct chain. This will resolve itself with time, otherwise a reload of the chain in your wallet may be necessary to expedite.

I also noticed one of the Piggy team nodes was offline and have restarted it; It stayed on the correct chain. I have also confirmed it appears cryptopia is on the true chain. The chainz block explorer however is NOT, I will reach out to them later to let them know.

Cheers!