My data source is not showing up in PowerBI.com

I am forced to change my password every so often at work, which makes me have to change my credentials to all of my data sources in the Power BI Service. However I cannot do this on one of my most important reports because the data source will not show up under "Data Source Credentials".

As you can see above the "Data Source Credentials" is expanded but no data source appears. This has only happened after the most recent update to the service.