System wasn't saving my progress - lost a bunch of work

So I'm plugging away at my post, figuring out all the new block layout stuff, saving regularly. I'm putting in the last image and the system won't load the image through the block software. I'm trying to upload the image via ftp and load it that way when the system gets locked up and won't let me out of a page to load the image. I tell it to "leave the page". I'm bounced back to the Joomla login screen. When I get back to Easyblog, I see that half of the post is GONE! What went wrong? I'm going to try to load this again tonight but I want to figure out what the problem is so that this never happens again.