Scroll bar at bottom of DataGrid View leaves partial data row visible

When I freeze the first column of my Datagrid with the following code:

this.dgv_List.Columns[“Actions”].AllowHtml = true;
this.dgv_List.Columns[“Actions”].DisplayIndex = 0; // Move new Column to front of list
this.dgv_List.Columns[“Actions”].Frozen = true;

The Horizontal Scrollbar renders to the right of the frozen column – leaving a partial row of data to be visible.

See attached screenshot.