SSRSViewer and Authentication

I've updated Radzen to the latest version as I saw there were some SSRS fixes implemented. Unfortunately, I still have issues when attempting to use the "Use Proxy" feature. Now it asks for credentials constantly and never displays the report. When Use proxy is off it works fine.

Perhaps it has something to do with not having any references? I noticed in the example screenshot there was 1 reference but mine has none.