Report does not display using custom URL but works with the Server Name

Hi All,

We have setup the Power BI Report Server Farm [March-2018 latest release of 3/28] in our Dev Environment where we have 2 Web Server setup and using Azure Intenal Load Balancer.

We have created a selfsign certs for the customurl Eg. PowrBIRS.dev.xyz.com

While we use this certs on Report Server configuration, it is configured as expected and Service as well as Portal both are accessible and loading without any issue. I have created a sample report and published it on the portal but while trying to load the report it is not displaying anything and while cheking it shows the error related to modelsAndExploration as below if i change it back to Server Certificate, it loads the report without any issue.