This entry was showing alright in org-agenda in Org 7.8, if I remember correctly.
** Dinner
<2016-02-26 Fri 12:00-13:30>
Not any more in Org 8.2. Now, it seems I need to have it this way to show up in org-agenda:
** TODO Dinner
<2016-02-26 Fri 12:00-13:30>
How could I show appointments (items without a TODO keyword) in new versions of org-agenda?
org-agenda-max-todos
ororg-agenda-max-entries
option is set. Again, it was fine with these options in Org 7.8. BTW, besides the appointments, this bug causes the Time Grid to disappear too.