diff --git a/.travis.yml b/.travis.yml
index 5fc10e3..8e8877f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,14 +1,10 @@
 language: groovy
 jdk:
 - openjdk11
-sudo: false
 branches:
   only:
   - master
   - develop
-  - feature/grails5
-  - Leaflet-migration
-  - hotfix
 before_cache:
   - rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
   - rm -fr $HOME/.gradle/caches/*/plugin-resolution/
@@ -17,6 +13,11 @@ cache:
   - $HOME/.m2
   - $HOME/.gradle/caches/
   - $HOME/.gradle/wrapper/
+
+install:
+  - 'travis_wait 30 ./gradlew clean'
+  - './gradlew assemble'
+
 after_success:
   - '[ "${TRAVIS_PULL_REQUEST}" = "false" ] && travis_retry ./gradlew publish -x test'
 
diff --git a/build.gradle b/build.gradle
index 971f77d..9c48a2b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -15,7 +15,7 @@ plugins {
 }
 
 
-version "4.0.0-SNAPSHOT"
+version "4.1.0-SNAPSHOT"
 group "au.org.ala"
 
 publishing {
diff --git a/grails-app/assets/javascripts/region_page.js b/grails-app/assets/javascripts/region_page.js
index 0779e45..e8e433a 100644
--- a/grails-app/assets/javascripts/region_page.js
+++ b/grails-app/assets/javascripts/region_page.js
@@ -90,10 +90,10 @@ var region = {
      * @returns [*]
      */
     buildBiocacheQuery: function (customParams, start, forChartValue) {
-        forChart = forChartValue || $("#taxonomyTab").attr('aria-expanded') === 'true';
-
         var currentState = regionWidget.getCurrentState();
 
+        forChart = forChartValue || regionWidget.getCurrentState().tab === 'taxonomyTab';
+
         var params = customParams || [];
 
         //q= must be first
@@ -138,7 +138,7 @@ var region = {
             params.push("start=" + start);
         }
 
-        if (timeFacet && !forChart) {
+        if (timeFacet) {
             params.push("fq=" + timeFacet);
         }
 
@@ -263,10 +263,17 @@ var RegionWidget = function (config) {
      *
      */
     var initializeTabs = function () {
-        // Initialize tabs
-        $('#explorerTabs').find('a').on('show', function (e) {
-            var tabId = $(e.target).attr('id');
-            updateState({tab: tabId, group: 'ALL_SPECIES', fq: '', subgroup: '', guid: ''});
+
+        $('#speciesTab').on('click', function(event) {
+            // reset species tab to all species, updating the map
+            if (regionWidget) regionWidget.getTimeControls().stop();
+            updateState({tab: 'speciesTab'});
+            $('#ALL_SPECIES-row i').click();
+        });
+        $('#taxonomyTab').on('click', function(event) {
+            if (regionWidget) regionWidget.getTimeControls().stop();
+            updateState({tab: 'taxonomyTab', group: 'ALL_SPECIES', fq: '', subgroup: '', guid: ''});
+            taxonomyChart.reset();
         });
         $('#' + state.tab).click();
 
@@ -337,9 +344,14 @@ var RegionWidget = function (config) {
      * Code to execute when a group is selected
      */
     var selectGroup = function (group, fq) {
+        var toggleExpansion = !regionWidget.getTimeControls().isRunning()
 
         $('.group-row').removeClass('groupSelected');
-        $("tr[parent]").hide();
+
+        if (toggleExpansion) {
+            $("tr[parent]").hide();
+        }
+
         if (group !== state.group) {
             $('#' + state.group + '-row i').removeClass('fa-chevron-down').addClass('fa-chevron-right');
         }
@@ -347,12 +359,14 @@ var RegionWidget = function (config) {
 
         var grp = $('#' + groupId + ' i');
         var isAlreadyExpanded = grp.hasClass('fa-chevron-down');
-        if (isAlreadyExpanded) {
-            $("tr[parent='" + groupId + "']").hide();
-            grp.removeClass('fa-chevron-down').addClass('fa-chevron-right');
-        } else {
-            $("tr[parent='" + groupId + "']").show();
-            grp.removeClass('fa-chevron-right').addClass('fa-chevron-down');
+        if (toggleExpansion) {
+            if (isAlreadyExpanded) {
+                $("tr[parent='" + groupId + "']").hide();
+                grp.removeClass('fa-chevron-down').addClass('fa-chevron-right');
+            } else {
+                $("tr[parent='" + groupId + "']").show();
+                grp.removeClass('fa-chevron-right').addClass('fa-chevron-down');
+            }
         }
 
         // Update widget state
@@ -652,7 +666,7 @@ var RegionTimeControls = function (config) {
         $('#timeSlider').slider('values', [regionWidget.getDefaultFromYear(), regionWidget.getDefaultToYear()]);
         stop();
         regionWidget.updateDateRange(regionWidget.getDefaultFromYear(), regionWidget.getDefaultToYear());
-        taxonomyChart.reset();
+        regionWidget.updateDateRange(regionWidget.getDefaultFromYear(), regionWidget.getDefaultToYear()); // called for a 2nd time for the use case when a "group" is select to restore the expansion toggle state
     };
 
     var updateTimeRange = function (values) {
@@ -663,6 +677,9 @@ var RegionTimeControls = function (config) {
     var _public = {
         isRunning: function () {
             return state === CONTROL_STATES.PLAYING;
+        },
+        stop: function() {
+            stop();
         }
     };
 
@@ -677,7 +694,7 @@ var TaxonomyWidget = function (config) {
     var TaxonomyWidget = function (config) {
         var currentState = regionWidget.getCurrentState();
 
-        var query = '';
+        query = '';
         $.each(region.buildBiocacheQuery([], 0, true), function (i, v) {
             if (query.length === 0) {
                 query = v
diff --git a/grails-app/assets/javascripts/regions/charts2.js b/grails-app/assets/javascripts/regions/charts2.js
index 961bb50..2c88f4f 100644
--- a/grails-app/assets/javascripts/regions/charts2.js
+++ b/grails-app/assets/javascripts/regions/charts2.js
@@ -154,7 +154,6 @@ function buildGenericFacetChart(name, data, query, chartsDiv, chartOptions) {
     var individualOptions = individualChartOptions[name] ? individualChartOptions[name] : {};
     // merge generic, individual and user options
     opts = $.extend(true, {}, opts, individualOptions, chartOptions[name]);
-    //Dumper.alert(opts);
 
     // optionally transform the data
     var xformedData = data;
@@ -292,7 +291,7 @@ function lookupEntityName(chart, table, opts, entity) {
             chart.draw(table, opts);
         },
         error: function (d, msg) {
-            alert(msg);
+
         }
     });
 }
@@ -372,9 +371,6 @@ var taxonomyChart = {
                 if (textStatus == 'timeout') {
                     alert('Sorry - the request was taking too long so it has been cancelled.');
                 }
-                if (textStatus == 'error') {
-                    alert('Sorry - the chart cannot be redrawn due to an error.');
-                }
                 if (textStatus != 'success') {
                     thisChart.cleanUp();
                 }
@@ -382,6 +378,11 @@ var taxonomyChart = {
             success: function (data) {
                 // check for errors
                 if (data != undefined && data.taxa.length > 0) {
+                    // remove any data.taxa array elements with label == ''
+                    data.taxa = $.grep(data.taxa, function (obj) {
+                        return obj.label !== '';
+                    });
+
                     // draw the chart
                     thisChart.draw(data);
                 } else {
@@ -476,7 +477,7 @@ var taxonomyChart = {
         }
         else {
             // show the instruction
-            $backLink.html($.i18n.prop("charts.click.slice")).removeClass('link');
+            $backLink.html($.i18n.prop("charts.click.slice")).removeClass('lnk');
         }
 
         // draw records link
@@ -636,7 +637,7 @@ function initTaxonTree(treeOptions) {
                         return nodes;
                     },
                     error: function (xhr, text_status) {
-                        //alert(text_status);
+
                     }
                 }
             },
diff --git a/grails-app/assets/stylesheets/regions.css b/grails-app/assets/stylesheets/regions.css
index b14bee2..6a89238 100644
--- a/grails-app/assets/stylesheets/regions.css
+++ b/grails-app/assets/stylesheets/regions.css
@@ -289,13 +289,13 @@ li.regionLink {
 }
 
 tr.groupSelected, tr.groupSelected:hover td {
-    /*background-color: #C44D34 !important;*/
-    /*color: white;*/
+    background-color: #C44D34 !important;
+    color: white;
 }
 
 tr.speciesSelected, tr.speciesSelected:hover td {
-    /*background-color: #C44D34 !important;*/
-    /*color: white;*/
+    background-color: #C44D34 !important;
+    color: white;
 }
 
 #showMoreSpeciesButton {