@timmyit happy i found your post. not happy that you are having the same problem as me.
I had 2 withdrawels today one was stuck for 2 hours then showed up finally. The other one is still lost 8 hours later. All show up as complete, yet etherscan shows nothing for the second one.
hope they can resolve the issue. I am loosing trust in exchanges, switching my ether to bitcoin and getting the hell out of there. Reminds me of MTGox times.
Do you have any update on the situation?
I have the same issue, I transferred REP from poloniex to my ether wallet. My withdrawal transaction says complete with txn hash i don't see anything on etherscan. I raised the request with polo regarding this issue but no response yet!
No idea what's going on I guess it has to do with the supposedly huge backlogg on eth. Let me know once you see an improvement.