Did you look here?
Go to "profile" -> "orders history" and check there - that's where mine was hiding. They disappeared from the normal viewable location on the trade page but I could cancel them and get the units back in my finances summary page.
The funds were transferred out of my account.. support even said so and gave me the supposed IP address of the hacker and the BTC address funds were transferred to.
Well that's awful - this is the sort of thing that might cause a run on the 'bank' - I've withdrawn my LTC.