Ok, I have a strange one. Over the past few days, Samsung Calendar no longer has a "Birthday" category under the Google account entry. I still have Calendar, Holidays in United States, and 2 other Family member calendars that they share with me. The Birthday choice vanished! The birthday choice still remains on the Google Calendar (Web), and it's also still there on the Google Calendar App on my phone (I use this for trouble-shooting purposes - but prefer Samsung Calendar).

Here's the odd thing. I have always had the Birthday events show up in red on my calendar, and I could easily toggle them on our off by using the radial button that is no longer there. However, even though the category listing has vanished, the birthdays are still listed on Samsung calendar but not in red. They are listed in the same color as my primary color events.  Google Calendar (app on the phone) is still working as it should, that being the birthdays are red and I can turn them on/off to make them visible on my calendar at will.

It seems like there is some type of corruption of some sort. I have force stopped Samsung Calendar, cleared cache, cleared data, uninstall updates, etc., but that's didn't do anything.

Any ideas?