.ai file opening up as blank
Yesterday I saved a project as I always have, and shut off my computer after closing out of illustrator, however, when I reopen the file, I get a blank workspace and all of the layers are missing. I know it is not a mistake on my part, since I can see a thumbnail of the project, shown in "recent" when I open illustrator. I made a second ai file yesterday too, and that one opens just fine. What could have happened and how to I fix the file or prevent this from happening again? The project is only 671kb so I don't think it broke from being too big of a file.