Dang that sucks, sorry... I'm not aware of any issues that cause saves to disappear, unless you cleared your browser cache after saving, used an incognito browser, switched browsers, etc. If the issue persists, maybe you'd have better luck with the windows version?
I wasn't playing on incognito and simply reloaded the page so it's pretty strange. I'll see if this keeps happening. I was at the part where you have to get flowers, a poem and food for Kyungsoon btw.
