REST API - generates the report but doesn't email

Summary:

The POST call completes successfully however doesn't send the report in the email address provided in the body. The Jobs console also shows that the report generation was a success. Can anybody think of what I might be missing here?

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):
24.07.52

Code Snippet (add any code snippets that support your topic, if applicable):

{
"groupName":"Reconciliation Manager",
"reportName":"Admin View Report",
"generatedReportFileName":"Admin View Report.csv",
"format":"CSV2",
"module":"RC",
"emails":"email@email.com",
"runAsync":false
}