Power BI Report Server September 2019 French multiple issues

I use a PowerShell script to extract the pbix report from ReportServerPBI database. With this Powershell script, the report as the correct name, with accents.

When I open this file with Power BI Desktop RS (May 2019 and not September 2019), I can launch the report without any message regarding connection.

I unzip this file and look at the content for "Connections" file:

{"Version":1,"Connections":[{"Name":"EntityDataSource","ConnectionString":"Data Source=SRVBI;Initial Catalog=SSAS_TABULAR_006_PROD;Cube=Modèle","ConnectionType":"analysisServicesDatabaseLive"}]}