I have 5 tables on a page set up with inline editor features.
Two are small so fixedColumns: false.
Two are wide so fixedColumns: true

with fixed columns 3.2.5 it works fine with all tables.
with 3.3.0 i get "node is not a function" in this bit of code in the tables that fixedColumns are turned off on.

DataTable.Api.registerPlural( 'cells().fixedNodes()', 'cell().fixedNode()', function () {
    return this.iterator( 'cell', function ( settings, row, column ) {
        return settings._oFixedColumns
            ? settings._oFixedColumns.fnToFixedNode( row, column )
            : this.node();  // <-----------------------------------------------------------
    }, 1 );
} );

here is my bundler list:
"scripts/datatables-1.10.20/datatables-1.10.20/js/jquery.datatables.js",
"scripts/datatables-1.10.20/datatables-1.10.20/js/datatables.bootstrap4.js",
"scripts/datatables-1.10.20/select-1.3.1/js/datatables.select.js",
"scripts/datatables-1.10.20/buttons-1.6.1/js/datatables.buttons.js",
"scripts/datatables-1.10.20/buttons-1.6.1/js/buttons.bs4.primary-sm.js",
"scripts/datatables-1.10.20/local.datatables.js",
"scripts/datatables-1.10.20/scroller-2.0.1/js/datatables.scroller.min.js",
"scripts/datatables-1.10.20/scroller-2.0.1/js/scroller.resizer.js",
"scripts/datatables-1.10.20/FixedColumns-3.3.0/js/dataTables.fixedColumns.js",
"scripts/datatables-1.10.20/keytable-2.5.1/js/datatables.keytable.js",
"scripts/datatables-1.10.20/editor-1.9.2/js/datatables.editor.js",
"scripts/datatables-1.10.20/editor-1.9.2/js/editor.bootstrap4.js",

Thanks, Scott