Powerapp within PowerBi not loading when create new

Hi BouwerJ ,

I have tested it locally:

 

You could check your Power BI version ,and download the lastest Power BI version,refer:

https://www.microsoft.com/en-us/download/details.aspx?id=58494 

 

 

And check the following limitations:

refer:

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

 

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Best Regards

Lucien