https://cryptsy.freshdesk.com/support/discussions/topics/44674/page/last#post-107199 I too had my coins just disapear into thin air, but after looking around a bit I stumbled upon this post. Well I tried it, and lo and behold my xpm that had disapeared came back! I'm hoping that this will help someone else that has experienced this bug
This worked for me too.
Then i tried to sell them again.. and of course, they disappeared once more