Issues with Meeting Scheduling Agent Not Sending Invites After Confirmation

Hey team I'm not sure why I have endless issues with a simple meeting scheduling agent. I cc: the agent into an email asking it to find times for us to meet. She proposes times. I then agree a day and time with the prospect in person, so I tell the Agent to book a specific date and time. It responds perfectly, says invites have been sent, but then nothing comes through. I've prompted the agent to fix it but still not getting anywhere.