Sunday I was working on a 100 pages magazine. When I wanted to save, I got this massage "xxx can not be saved". Save as didn't work either - and the only way out was to restart everything. It didn't restore the document, and I lost hours of work! I started over, and was now able to save etc. So I saved and closed, with no messages or problems what so ever. Today, when I opened the document, nothing from sunday was there! It had not saved anything, even though it "acted" fine after the reboot etc. Now I wonder, if I should convert back to 2014, to stop this from happening again. Have any of you experienced the same with InDesign CC 2015????