Era customer service jingle: Hello, XCN wallet is not synchronized, and not the speed problem oh! Because the synchronization is expected after the block will be completed on schedule to 100% can not be completed [we are] many times synchronous stop card in schedule 99%, if closed open, there will be error: Assertion failed! Program:C:Users File: trieview.cpp.line Expression: blockCache.ReadBlockFromDisk..... 305 (blkck, PIndex) if you can please give us feedback, thank you. This is the answer BTC38 customer service.
they probably have a corrupted wallet.
they must import the private key in a new wallet and sync using a blockchain snapshot.
I provided them all of this.
now I'm wondering why, despite me being in constant email contact with them, they don't tell me their progress.
also they should use a headless wallet, not the qt one: it's lame for an exchange to use windows and graphical frontend.