Thank you for replying so quickly! Is there any documentation on the custom data columns? That feature sounds pretty nice.
After a long time troubleshooting this issue, I found that the issue was I had a test user set up with the same email address as the ADFS user I was trying to authenticate. Currently, this plugin doesn’t do any error checking to see if there was an issue when the wp_insert_user function is called so it doesn’t tell you there is an issue.