I have the same problem with the withdrawal of the coins of DGB, the transaction was not completed, the coins never appeared in the blockchain.
Complete DGB 2510.74319583
2017-12-23 16:09:12 Address: D7Vx1H8gZkVHkAem4QWmA9Ng8bsEWY1FEs Txid: 30efcfa6cdc59ca1101b3dbf959c140dab339be2f1a66ff9b343ef779ac58f42
https://clip2net.com/s/3QBU6SH
https://chainz.cryptoid.info/dgb/address.dws?D7Vx1H8gZkVHkAem4QWmA9Ng8bsEWY1FEs.htm
Poloniex gave Txid, but where have my coins been already 24 hours? wrote in poloniex and saw there his old ticket for 1 month. prescription is not resolved by Zec. poloniex does nothing for us, they have long scored on everything and cut money nothing more. Be careful not to use large amounts you can lose everything.
the subsequent smaller transactions went fine, but they did not push the previous one. , a similar situation happened with the withdrawal of the coin from the DGC from the exchange of cryptopia. 1694 coins 24 hours hung in the procession after this, cryptopia gave Txid but the coins did not appear in the chain of the blockchain.
1637303 DGC 1694.24817517 0.00010000 Complete
26d60a53dea2fb9ddb3b60e286de07b45228f0d2ad773e6d880984b14b6d5968
DSDuNAo7MuP13AMHfM3Gk7ZnbmL1maGVE5
23/12/2017 2:41:00 PM
https://chainz.cryptoid.info/dgc/address.dws?DSDuNAo7MuP13AMHfM3Gk7ZnbmL1maGVE5.htm
I have had some delays with withdrawal coins from cryptopia, for example, the PIVx coin did not appear for a long time on poloniex for about 10 days. I think that the coins will appear in the end in a blockchain , most likely it is a lost block. or the machinations of the exchange who knows. new technology puzzles