Trados 2015 never updates the memory

I have Trados 2015 and it NEVER updates the memory. I have ticked the right boxes (yes, in project -> settings) and it will update manually, but it will NOT update automatically. So when a translated file gets corrupt, as it did today, I can't create a new project and just repopulate it with what is in the memory. Now I have to redo my entire translation.  I have the latest version of 2015. I just don't know what to do anymore. I'm going to have to work all night because of this horrible bug.