Let me remind you, the problem began with the wallet version 0.1.7.5 simply ceased to be opened in later versions, allegedly entered incorrect password, but the password was very simple and consisted only of digits. That is why decided to restore a purse.
Yeah I remember. I tried to reproduce the issue on my end but never mannaged to. Meanwhile I did reproduce wrong password issue the recovery from seed allways recovered correct ammount of coins.
As I said before, please check transactions history. It could be that you were not the only one having access to it.