DataTables double ajax request

HI.
First DataTables is awsome and works great and fast but i have a strange problem using server processing im getting double ajax request with draw: 1 and draw: 2 parameters. The page that contains DataTables is loaded with ajax. The page contains 4 tables separated in bootstrap tabs. I also use one search field to search in all the tables.When searching everything is fine im getting only 4 ajax requests, only when loading the page im getting 8 double ajax requests.

here is the code for one table. All other tables are the same with different ajax data

$(document).ready(function () {


    $('#isprati tbody').unbind();

    var pocdatum = $('#pocdatum').val();
    var krajdatum = $('#krajdatum').val();

    var selectedUsluga = ($('input[name="usluga"]:checked').serialize());
    var selectedTip = ($('input[name="tip"]:checked').serialize());
    if ($.fn.DataTable.isDataTable("#isprati")) {
        $('#isprati').DataTable().clear().destroy();
    }
    var table1 = $('#isprati').DataTable({
        responsive: {
            details: {
                type: 'column'
            }
        },
        //deferRender: true,
        //pageResize: true,

        autoWidth: false,
        // "processing": true,
        "serverSide": true,
        "order": [[8, "asc"]],
        scrollY: '34vh',
        scrollCollapse: true,
        "pageLength": 100,
        "ajax": {
            url: "/admin/src/nalozi.src.php", // json datasource
            type: "post",  // method  , by default get
            data: {
                type: 1,
                checkUsluga: selectedUsluga,
                checkTip: selectedTip,
                nalogType: 'Да се испрати екипа',
                enddate: krajdatum,
                startdate: pocdatum
            }
        },
        columns: [
            {"data": null, "defaultContent": "", className: 'control', orderable: false, targets: 0},
            {"data": "1", targets: 1},
            {"data": "2", targets: 2},
            {"data": "3", targets: 3},
            {"data": "4", targets: 4},
            {"data": "5", targets: 5},
            {"data": "6", targets: 6},
            {"data": "7", targets: 7, className: 'none'},
            {"data": "8", targets: 8}
        ],
        buttons: [{
            text: 'Прати Екипа',
            className: 'btn btn-success btn-xs',
            action: function (e, dt, node, config) {
                var data = table1.rows('.selected').data().toArray();
                var newarray = [];
                for (var i = 0; i < data.length; i++) {
                    newarray.push(data[i][1]);
                }

                var sData = newarray.join();
                $.ajax({
                    type: 'post',
                    url: '/admin/src/nalogDetail.src.php',
                    data: {
                        nid: data[0]
                    },
                    success: function (data) {
                        $("#nbody").html('');
                        $("#nbody").html(data);
                        $("#nnaslo").html('');
                        $("#nnaslo").html('<button type="button" class="close" data-dismiss="modal">&times;</button><h5 id="nalogIDbr" data-id="' + nid + '" class="modal-title">Детали за налог бр: ' + nid + '</h5>');
                        $('#nalog-detail').modal("show");
                    }
                })

            },
            init: function (api, node, config) {
                $(node).removeClass('dt-button');
                $(node).removeClass('btn-default');
                $(node).addClass('pratiEkipa');
            }
        }],
        dom: 'B' +
        '<<"row"><"col-md-12"rt>>' +
        '<<"row"><"col-md-3"i><"col-md-9"p>>',
        "infoCallback": function (settings, start, end, max, total, pre) {
            return "Резултати: " + total;
        },
        "fnRowCallback": function (nRow, aData, iDisplayIndex, iDisplayIndexFull) {
            // Bold the grade for all 'A' grade browsers
            if (aData[6] === "Интернет") {
                $('td:eq(6)', nRow).html('<span class="label label-danger" style="font-size: 12px;">Интернет</span>');
            }
            if (aData[6] === "Телевизија") {
                $('td:eq(6)', nRow).html('<span class="label label-primary" style="font-size: 12px;">Телевизија</span>');
            }
            if (aData[6] === "Телефонија") {
                $('td:eq(6)', nRow).html('<span class="label label-info" style="font-size: 12px;">Телефонија</span>');
            }
            if (aData[6] === "Дигитална") {
                $('td:eq(6)', nRow).html('<span class="label label-success" style="font-size: 12px;">Дигитална</span>');
            }
            if (aData[6] === "Инфо Центар") {
                $('td:eq(6)', nRow).html('<span class="label label-default" style="font-size: 12px;">Инфо центар</span>');
            }
            if (aData[6] === "Канцеларија 4") {
                $('td:eq(6)', nRow).html('<span class="label label-default" style="font-size: 12px;">Канцеларија 4</span>');
            }
            if (aData[6] === "Канцеларија 5") {
                $('td:eq(6)', nRow).html('<span class="label label-default" style="font-size: 12px;">Канцеларија 5</span>');
            }
            if (aData[6] === "Канцеларија 6") {
                $('td:eq(6)', nRow).html('<span class="label label-default" style="font-size: 12px;">Канцеларија 6</span>');
            }
            if (aData[6] === "Канцеларија 7") {
                $('td:eq(6)', nRow).html('<span class="label label-default" style="font-size: 12px;">Канцеларија 7</span>');
            }
            if (aData[6] === "Канцеларија 8") {
                $('td:eq(6)', nRow).html('<span class="label label-default" style="font-size: 12px;">Канцеларија 8</span>');
            }
            if (aData[6] === "Наплатен центар") {
                $('td:eq(6)', nRow).html('<span class="label label-default" style="font-size: 12px;">Наплатен центар</span>');
            }
            if (aData[6] === "Шефови на екипи") {
                $('td:eq(6)', nRow).html('<span class="label label-default" style="font-size: 12px;">Шефови на екипи</span>');
            }


            if (aData[5] === "Дефект") {
                $('td:eq(5)', nRow).html('<span class="label label-danger" style="font-size: 12px;">Дефект</span>');
            }
            if (aData[5] === "Нов приклучок") {
                $('td:eq(5)', nRow).html('<span class="label label-primary" style="font-size: 12px;">Нов приклучок</span>');
            }
            if (aData[5] === "Исклучување") {
                $('td:eq(5)', nRow).html('<span class="label label-success" style="font-size: 12px;">Исклучување</span>');
            }
        },
        "language": {
            "sProcessing": "Процесирање...",
            "sLengthMenu": "_MENU_ записи",
            "sZeroRecords": "Не се пронајдени записи",
            "sEmptyTable": "Нема податоци во табелата",
            "sLoadingRecords": "Вчитување...",
            "sInfo": "_START_ до _END_ од _TOTAL_ записи",
            "sInfoEmpty": "0 до 0 од 0 записи",
            "sInfoFiltered": "(Вкупно _MAX_ записи)",
            "sInfoPostFix": "",
            "sSearch": "Барај",
            "sUrl": "",
            "oPaginate": {
                "sFirst": "Почетна",
                "sPrevious": "Претходна",
                "sNext": "Следна",
                "sLast": "Последна"
            }
        }
    });


    $("#tab_filter").unbind();
    $("#tab_filter").keyup(function (e) {
        if (e.keyCode === 13) {
            table1.search(this.value).draw();

        }
    });

    $('a[data-toggle="tab"]').on('shown.bs.tab', function (e) {
        $($.fn.dataTable.tables(true)).DataTable().columns.adjust().responsive.recalc();
    });


    $('#isprati tbody').on('click', 'tr', function () {
        $(this).toggleClass('selected');
    });
    $('#isprati tbody').off('dblclick');

    $('#isprati tbody').on('dblclick', 'tr', function () {
        $('#nalog-detail').unbind();
        var data = table1.row(this).data();
        var nid = data[1];

        $.ajax({
            type: 'post',
            url: '/admin/src/nalogDetail.src.php',
            data: {
                nid: nid,
                allowed: 1
            },
            success: function (data) {
                $("#nbody").html('');
                $("#nbody").html(data);
                $("#nnaslo").html('');
                $("#nnaslo").html('<button type="button" class="close" data-dismiss="modal">&times;</button><h5 id="nalogIDbr" data-id="' + nid + '" class="modal-title">Детали за налог бр: ' + nid + '</h5>');
                $('#nalog-detail').modal("show");
            }
        })
    });