Same issue with ETH.
"Dear valued customer
I am sorry to inform the ETH network is under heavy stress at the moment and some withdrawals are not being broadcast correctly.
Rest assured we will rebroadcast your withdrawal as soon as possible, thank you for your patience and I am sorry for the inconvenience.
Best regards,
Ian
Poloniex Support"
At first my Txid was be - 0xd1e58135ede4baab8597252aefa8d38d864cb06c16f2e82e892b5e7686895598
Then they change it after a while - 0x1aa25906773f927c83a6e2573bdc8b195c08af26a9a3d7e7a3c4d684d7631625
All of them incorrect Txid. Really I can't understand why?
P.S. Maybe they should hire good programmers from Russia.
Looks like Poloniex cannot fix anything, also any small issues.
Hey Poloniex, hire good programmers