hi  kbhagani 

try to edit it in the browser after viewing it, there was an edit function in the browser.

https://docs.microsoft.com/en-us/powerapps/maker/canvas-apps/powerapps-custom-visual#limitations-of-the-powerapps-custom-visual

and for this case, it more related to powerapp, you could get better help here:

https://powerusers.microsoft.com/t5/Power-Apps-Community/ct-p/PowerApps1

Regards,

Lin

Hi I am getting the same error too. Can this be looked into further please? 

I am having the same error in different tenants and in both Edge and Chrome.

Getting same issue starting today

Same issue, the power app is working fine by itself, but not able to add it in Power BI report.

One method which worked for me was to ignore trying to establish a connection to an existing Power App in Power BI Desktop, and instead add the Power App visual through the Power BI Service.