The latest version of the PowerApps custom Visual for Power BI adds a new much easier to use authoring experience and the ability to update the report and underlying dataset 

(Please note: To use the refresh functionality the report needs to be based on DirectQuery)




For more tips like this, check out the working remotely playlist at www.youtube.com/FoetronAcademy . Also, if you need any further assistance then you can raise a support ticket and get it addressed.