A bug has been reported by various users of the neo-gui, neowallet.cn and Android wallet where the incorrect total of NEO and GAS is being displayed, causing users to believe they have lost their funds.
Holders can rest assured that this is just a visual bug, and City of Zion have Tweeted out to confirm they are looking into the issue.
We are currently investigating the issue where the neo-gui, neowallet.cn and android wallet may display the wrong amount of $NEO / GAS
— CoZ Official (@coz_official) August 29, 2017
Users worried about their funds can enter their public address into neotracker.io to check the balance.