Email meeting invitation to attendee

Description
I am using the ‘Create a meeting’ endpoint using Python to set up meetings that me and my colleagues will be hosting. When I set up a meeting for myself, every thing works fine: the meeting is listed on the Google calendar, and an invitation is sent to the attendee. When I set up a meeting for anybody else, the meeting is listed on their Google calendar, but the invitation to the attendee is not sent.

Error?
Why are invitations for my colleagues’ meetings not being sent?

How To Reproduce
Steps to reproduce the behavior:
API Endpoint: Create a meeting
*1. Request URL : https://api.zoom.us/v2/users/name@work.com/meetings

Request parameters:
{ ‘agenda’: ‘Agenda: This is a test!!’,
‘calendar_type’: 2,
‘contact_email’: ‘name@work.com’,
‘contact_name’: ‘First Last’,
‘duration’: 15,
‘schedule_for’: 'name@work.com’,
‘settings’: { ‘approval_type’: 1,
‘meeting_invitees’: [ { ‘email’: ‘attendee@gmail.com’}],
‘push_change_to_calendar’: True,
‘registrants_confirmation_email’: True,
‘registrants_email_notification’: True},
‘start_time’: ‘2024-03-15T13:15:00’,
‘timezone’: ‘NY’,
‘topic’: ‘Topic: This is a test!!’,
‘waiting_room’: True}

*2. Authentication method or app type: Oauth