I was working on my latest puzzle for Puzzling.SE, and I decided to take a break and do something off-computer. Having had some minor difficulties with the draft auto-save on the SE network before, I decided to copy and paste my progress into a text document. At that time, I had 30-40 lines of text in the submission box, and had been on a different window for several minutes. According to this post, all of my revisions should have been saved. However, upon returning to PSE to work on the question some more, I found that only a few lines had been saved:
Hopefully relevant and helpful information:
Browser: Firefox Quantum 68.0.1 (64-bit)
Device: Asus laptop running Windows 10 version 1809 (yes, I know I need to update)
About 1/4 to 1/3 of the lines in the partially completed post were copy-pasted; the rest were hand-typed.
Around 35 lines were in the submission box when I closed my browser window.
Only four remained when I came back 60-90 minutes later.
When I closed the window, I got the Leave page? prompt from Firefox, to which I initially replied 'no' to out of habit.
My internet connection is good - around 41 ms of latency.
The posted question has just been completed and can be found here.