If you have Huawei cell phone and you want to use Google Calendar in your phone, you will have to do one thing just to be sure, that Calendar will work fine.
Unfortunately, the original calendar in Huawei usually deletes your events, denies invitations and so on.
What you have to do is disable access of this calendar to Google Calendar in settings of your phone to prevent of this actions.
After you will do it, just restart your phone and you are done! No more unsolicited actions in your Google calendar.
If you are still experiencing difficulties don't hesitate to contact us here.