the awaiting approval problem is a different one though and regularly happens at Poloniex when they deem that manual intervention is necessary (independent of temporarilty disabled blockchains or blockindeces).
Previous experience shows that these things can take a few more days there -- unpleasant but not too unusual...
RE: Poloniex: Withdrawals 'Temporarily Disabled' for Litecoin, Steem, Steemdollar, Ethereum