I've successfully reproduced the issue that one of my stakeholders is having.
She's trying to invite a group of users to join her group, and importing a CSV to do so. The file is being properly read, because it asks you to choose which is the name column and which is the email column. No Error is given after upload.
The group is located here: https://community.mcafee.com/groups/endpoint-product-advisory-councils
The CSV is attached.
The page flow is below.
*edited to remove personal info*
Message was edited by: April Jacobs