Normaly shorts close on pump not on dump. People dont close short positions in a downward motion, bitfinex closes it for them. In my case even backdates it for 6h in the order history. now they stoped delivering data to BITFINEX:BTCUSDSHORTS there ia a telegram group about it web.telegram.org/ and a reddit thread reddit.com/r/bitfinex/comments/7gjaf2/anyone_able_to_withdraw_anything/