Question

The birthdays and schedules from my Google account contacts information are suddenly showing up in the calendar app on my Galaxy device, which I had set to be invisible.
 

Answer

• We have identified that there was a change in the function related to showing birthdays and schedules from contacts information in Google account, causing the settings in the calendar app not to apply properly.
   
• To resolve this issue, please sign in to your Google account through Google Web(https://www.google.com) and turn off the option for synchronizing with Google contacts.

Path :

1) Go to Google website (https://www.google.com) and login to your Google account.

2) Calendar > Select the birthday options next to 'Birthdays' under 'My calendars'.

3) 'Settings and sharing' > deselect the box next to 'Sync from your Google accounts' to disable it.