I am experiencing a weird problem. Since yesterday every time I enter a new entry it seems to delete after about an hour or so. I am running google sync so I can see all the new entries on my google calendar, but not on my phone.
Go to calendar>> keep appointments>> select the time you want.
If does not work look at the settings of Google sync
I have keep appointments set to 60 days. It isn't deleting my old entries, it is deleting all the new ones I am adding. I also don't seem to see anything wrong with my google sync settings.