We’ve got limited information, but we do know that right now, Bitcasa are in the process of rolling out major server updates.
We are seeing random errors and other odd behaviour across a range of sites, which, from several hours of testing and debugging, we are sure are entirely at their end. We deduce that this must be linked to their roll-out.
As a result, if you are seeing unexpected behaviour on your Bitcasa-based backups right now, then there doesn’t seem to be much to do (apart from mention it on the Bitcasa forums, if you haven’t already) – we assume they’re working on these issues. Having spent some hours on these issues already, we’re as frustrated as you are!
David Anderson (lead developer, founder, UpdraftPlus)