Using DataTables 1.10.18
Quick report: After upgrading DataTables, Editor, and other plugins in one of our applications, we found that only 10 rows were being displayed.
Previously, our datatable had no pagination lines.
Adding: "paging: false" had no affect.
Adding that plus "lengthMenu: [-1]" was necessary to display all rows.
It seems unintended to display only 10 rows when pagination is completely disabled.