I was paid in ICA for a contract, and not having any use for this currency right now, I decided to sell it. The next day I placed an erroneous order when I attempted to buy CIS, and deleted it. Accidentally, I also deleted the ICA sell order. I noticed that while the game indeed deleted my ICA order, it did not refund me for it - my money is gone.
Did you successfully sell the ICA by any chance? Maybe the order was partially filled?
Looks like it must have been filled at the same time I cancelled the other one, hence the confusion.