There is lots of users on bittrex exchange, they say their account disabled. no support from bittrex. Cointelegraph says to receive many complaints.
What do you think happen at bittrex right now?
It's like a sign of mt.gox v2 but i hope i'm wrong. So many scam accusations about bittrex recently here
https://bitcointalk.org/index.php?board=83.0, even cointelegraph make an article about it. It's better to not stored many coins on bittrex for now until the problem solved.