Goals Keep Disappearing 2 (Different)

This is very frustrating: I list a goal for the week, then after refreshing or logging out then logging back in the next day, the goals have disappeared. If I try to add the same goal again, then the original will sometimes reappear. If I then delete the second copy, the original disappears again. So either I end up with duplicate entries or none for some; and none at all on others.

For example, I created a new role ("Study") and listed five goals for the week. Two goals disappeared completely (no, scrolling doesn't locate them again) and three remained after I refreshed the page. I had two goals listed under "Work," but both disappeared after the refresh and can't be found. (This happens daily.) The goals I listed under another created role ("Volunteer") also disappeared entirely.

I have been unsuccessful in finding a common attribute that would explain the disappearances. (This has also happened with some Daily Tasks when I list more than five.)