Reports not fetching newly added fields to table (data source)

When I create Report for some table, the data source is providing all its columns.

But if I add new row(s) into table, the Report data source is somehow not updated, and its not providing/showing newly added rows.

Is there any way how to “Refresh” the data source columns for report, so it sees the newly added ones?

I am a little confused here.
Report data source should show new columns. Not rows.
New columns supposed to be added automatically. Sometimes it helps to fill in some value into the first row (to that new column). Or to change a data source of the report to another table and back.
Please, duplicate the report before you do any changes like that to backup your work.