Canvas app with modern Table Control does not load data source in live environment ("Play" or opening the app to test). What's odd is: the app loads data and behaves as expected in Editing mode.
Data source is a SharePoint List. I originally designed the table to load a collection. When this behavior was noted, I switched the data source to the SP List, directly. A difference was noted: in the collection data source live environment the Table always returns no data with the "We didn't find anything to show here" message:

When connecting to the list, the Table control spinner icon appears, showing activity attempting to load a data source, but never completes the load.
In both cases, the table column fields appear as well as a modern Tab Control and text fields showing the correct data per the Filter criteria for their respective Items or DataField properties.
Any help would be appreciated as I do not want to rebuild a Gallery to mimic the data table!