This got my attention since it contains my small transaction (BTC0.02) as well. Here's the tx:
https://blockchain.info/tx/d90f08153ff92f8fb91a4314f5efa1472f823ddd490bb697f61de23adc3a1a61

So, is it the traffic or low fee / no fee? But I'm sure the fee was deducted when i withdrew .02 from Bittrex today.