A trader reportedly makes half a million from a flash crash, then the LATOKEN exchange takes their coins

A trader set very low limit order on Ripple's XRP token, and was delighted to see it executed with XRP very briefly plummeted in value in what's known as a flash crash. The price recovered quickly, and the trader found themselves $458,000 wealthier. However, when they tried to withdraw some of their money from the exchange they were using, LAToken, the withdrawal was declined and their account was restricted for 24 hours for an unspecified terms of use violation. When the trader regained access to their account, the XRP they bought was nowhere to be found.