Power Apps visual in Power BI not working

Hi guys,

again, thank you all for your help. Finally, it showed up that the problem was somewhere else. That's why I cannot tell which of your answer solved my problem, as the problem was different then I described.

The problem was in a language version of Power Apps. I use the czech version (cannot force browser to be in english for some reason) but my coleague user english version. And Power Apps has different approach to name of aggregation. The column from Power BI was aggregated and czech naming was used for it instead of "Sum of..." And that didn't work for my coleague which I falsely evaluated as problem of connection (as she was not able to see any connected data). No, it was a problem of bad naming of a column that was used to filter Sharepoint table.

Feel bad about it. Sorry that I misled you.

Vašek