no show on birthdays!

Geral 9 months ago updated by James Briggs 6 months ago 3

I recently, eagerly, added Hebrew birthdays to family members on my iPhone but some of them are showing up on the incorrect hebrew date or not showing up at all. It should be noted that the birthdays that were added in the past do not have this issue. How can I remedy this? Might it have something to do with a recent IOS update?