FYI: someone just informed me that he magically had 30k and 5k transfers in his wallet. It was this address
http://wavesexplorer.com/address/3PHBX4uXhCyaANUxccLHNXw3sqyksV7YnDz And what is the seed? Try "import account" in your WAVES Lite Client 0.3.0 from github, then click "generate address from seed" and compare the address

With the client 0.3.0 I could reproduce the problem, if you click "generate address from seed" first, then enter the wallet seed, then the password and click "register". Looks like with version 0.3.1 it was fixed. Bad luck for the guys who maybe lost 30k.
Generation on the previous wallet worked perfectly. I have personally tested it on several operating systems on multiple browsers. I always got my address from my seed.
Maybe the guy had a weak personal seed. Perhaps his computer was hacked. Perhaps he used the informal wallet.
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Make sure that you are using the correct official links
You can download the Lite client from this link:https://github.com/wavesplatform/WavesGUI/releases*How to update the wallet?
Download the latest version. See the release date.
Make sure that you have a copy of the Seed. Close wallet. Just download the new archive, unzip it, delete old folders and archives. Open index.html file.
If you do not see your account, Import account using the seed. See instructions below
You can download the Chrome app from this link: https://chrome.google.com/webstore/detail/wavesliteapp/kfmcaklajknfekomaflnhkjjkcjabogm*Google App is updated automatically in your browser. But if you're not sure, Go to chrome://extensions/ turn on developer mode and click - Update extensions.And use these instructions:https://drive.google.com/open?id=1rRDKfKWXitBFrTII3CIq3haAJ771-MZCMD7SPWLNVBw