C-Cex wallet seems to be on the wrong fork. They are at block height 59060, while the official chain is at 60348. Both chains are moving independently, so its a fork, not just stale wallet.
That's why the withdrawals from C-Cex do not work. I also tried to withdraw a smaller amount (50,000 NLC), but the TX ID provided by C-Cex is not existant according to official block explorer. I opened a ticket too, and hope to get that withdrawal reversed, with coins back at my balance.
That may be a good thing C-Cex has forked. It helps to prevent withdrawals from exchange. If withdrawals are enabled, non-legit coins with flood the Yobit, and also will appear in local wallets. I hope C-Cex wil remain on the fork until they finally disable withdrawals.