Google Calendar on iPad and iPhone isn't syncing with Android
My partner adds an event to her iPhone calendar and shares it with me which I see on my iPad. That event will then sync with my Google calendar that is installed on my iPad. However, the event does not show up on my Google calendar on my Android phone. For it to show up on my Android phone, I have open the event in Google calendar on the iPad and press 'Copy To' my Google calendar. It seems like unnecessary steps. I wonder why my Google calender on the iPad is not syncing with Android?
[Re-Titled by Moderator]