Installed the Jira Cloud for Excel add in to my office 365 however it has never worked.
I dont receive any errors or information to help explain why, just the loading icon constantly spinning.


When I run fiddler to look at the web traffic I get a 400 Bad Request when talking to a jira end point.

Have tried clearing all credentials, uninstalling / reinstalling the add-in, etc. even to try and get the add-in to force me to the login screen but with no success.
Anyone have any ideas, would appreciate it.