The "+", add event, in iPhone calendar has gone missing from the title bar. Normally the "+" is in the upper right and the option to select the desired Calendars is in the upper left. Both are now missing and only "All Calendars" appears middle of the title bar. (The red arrow in the screen shot points to where the "+" sign would normally appear.) I confirmed syncing enabled to the iCloud and that Calendar sync is enabled, notifications are pushed, the default account is iCloud, and invitations are turned on.
Another symptom, the iPhone Calendar is no longer syncing with iCloud. Any guesses as to the problem? Could the two issues be related?