Suddenly my document reverts to an earlier version
Ever since I updated Adobe InDesign to version 15.0.1, my current document suddenly reverts to a state from several minutes prior. All of my recent changes are gone, up to ten minutes, and they are not even available under Edit > Redo.
I've started saving more often now. Recently, this problem happened again. It suddenly went back to an earlier state than I had last saved, so I closed without saving, reopened, and the file was exactly in the state I expected, which was a LATER state than my document had reverted itself to (thank goodness), but not where I was before the problem happened.
I find myself having to figure out, over and over again, what changes I've made to my document for the last ten minutes so that I can do the same thing over again. I have to save between each step!! This is not good!
Sara Delahan commented
Also, when this happens, I often discover that Undo/Redo and Save/Save As are grayed out for that document. I had to export as an IDML document last time. Then I had to quit restart InDesign to get it working again.