Calendar Entries not showing

[Tafflad]

Samsung phone with Android 13

I have Google Calendar on PC (browser) - I can see all Calendar entries fine
I have Calendar on iPAD - I can see all Calendar entries fine
If I create entries on Google web calendar they show OK on iPAD and vice versa
On my phone in Google Calendar my calendar entries are not showing for my main calendar.
If I go to Manage Calendars it is shown as Samsung Account with correct email.

I can 'Add an Account' but only options to choose from are:
Samsung Account
Exchange
Google
Exchange Active Sync

Should I try adding again, if so what 'type' do I choose.
Or should I delete account ? (how as it seems to be primary)

The calendar I wish to have displayed is linked to my @gmx.com email
It shows fine in Google Calendar on a browser

 

[SpookDroid]

If you're using Google Calendar on your PC and iPad, then you need to add the Google account to your Samsung phone AND select that as a visible option in 'Manage Calendars'. The Samsung account calendar does not sync with your Google account; they're separate.