A few follow-ups on this.
In terms of the first issue (can’t save through a short-cut), the folder I wanted to save to was shared with me from another account, but I can’t actually log into that account.
On the second issue, I am really mystified by the following: I’ve been working on the very same file I mentioned above to reproduce the work I lost. Everything was fine and it was updating on Google Drive until this afternoon, when I noticed that the screen said UNSAVED. I waited, but nothing happened. I decided to force it to save and CODAP dutifully asked me if I wanted to overwrite the old version – to which I replied “yes” – but it didn’t get saved and the document still says UNSAVED. I looked at the version history and there are 100 versions there – since I did a lot of work – did I overrun a stack? I’ve attached a few screen shots, but I don’t think they’ll really tell you anything.
