Did Google Calendar change the way shared calendars are added to your account by needing you to click Add This Calendar from the email?

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I use the Google Calendar API to read from shared Google Calendars. Until recently when someone shared a calendar with me I would get an email that said the following...

Hello na...@gmail.com,
We are writing to let you know that some...@gmail.com has given you access to view events on the Google Calendar called "some...@gmail.com".
We have automatically added this calendar to your Google Calendar account. You can hide or completely remove this calendar at any time.
The Google Calendar Team View Your Calendar.

 

Now it seems I need to actually accept and add the calendar before I can see it in my list. Here is what the last few emails look like...

Hello na...@gmail.com,
We are writing to let you know that some...@gmail.com has given you access to view events on the Google Calendar called "My Calendar".
After adding this calendar to your other calendars, you can hide or completely remove it whenever you want.
Add this calendar.
The Google Calendar Team View Your Calendar.

 

So I have to actually open the email and click on the "Add this calendar" link before I can see it. Anyone know of any changes or differences in some calendars vs others that would make me do this? I need the process to be automatic, so this is a bit of a burden. Thanks!

If this is the case, is there a way through the API to approve and add these?

Thanks!- Jonah