diff --git a/dist/bootstrap-native-v4.js b/dist/bootstrap-native-v4.js
index 68121057..fdf315b4 100644
--- a/dist/bootstrap-native-v4.js
+++ b/dist/bootstrap-native-v4.js
@@ -518,13 +518,13 @@
     var pauseHandler = function () {
         if ( self[interval] !==false && !hasClass(element,paused) ) {
           addClass(element,paused);
-          !isSliding && clearInterval( timer );
+          !isSliding && ( clearInterval(timer), timer = null );
         }
       },
       resumeHandler = function() {
         if ( self[interval] !== false && hasClass(element,paused) ) {
           removeClass(element,paused);
-          !isSliding && clearInterval( timer );
+          !isSliding && ( clearInterval(timer), timer = null );
           !isSliding && self.cycle();
         }
       },
@@ -583,6 +583,11 @@
   
     // public methods
     this.cycle = function() {
+      if (timer) {
+        clearInterval(timer);
+        timer = null;
+      }
+  
       timer = setInterval(function() {
         isElementInScrollRange() && (index++, self.slideTo( index ) );
       }, this[interval]);
@@ -605,7 +610,7 @@
   
       // find the right next index 
       if ( next < 0 ) { next = total - 1; } 
-      else if ( next === total ){ next = 0; }
+      else if ( next >= total ){ next = 0; }
   
       // update index
       index = next;
@@ -615,6 +620,7 @@
   
       isSliding = true;
       clearInterval(timer);
+      timer = null;
       setActivePage( next );
   
       if ( supportTransitions && hasClass(element,'slide') ) {
@@ -894,7 +900,7 @@
         bootstrapCustomEvent.call(parent, showEvent, component, relatedTarget);
         addClass(menu,showClass);
         addClass(parent,showClass);
-        menu[setAttribute](ariaExpanded,true);
+        element[setAttribute](ariaExpanded,true);
         bootstrapCustomEvent.call(parent, shownEvent, component, relatedTarget);
         element[open] = true;
         off(element, clickEvent, clickHandler);
@@ -907,7 +913,7 @@
         bootstrapCustomEvent.call(parent, hideEvent, component, relatedTarget);
         removeClass(menu,showClass);
         removeClass(parent,showClass);
-        menu[setAttribute](ariaExpanded,false);
+        element[setAttribute](ariaExpanded,false);
         bootstrapCustomEvent.call(parent, hiddenEvent, component, relatedTarget);
         element[open] = false;
         toggleDismiss();
diff --git a/dist/bootstrap-native-v4.min.js b/dist/bootstrap-native-v4.min.js
index fecb8e29..14bdaf74 100644
--- a/dist/bootstrap-native-v4.min.js
+++ b/dist/bootstrap-native-v4.min.js
@@ -1,2 +1,2 @@
 // Native Javascript for Bootstrap 4 v2.0.24 | © dnp_theme | MIT-License
-!function(t,e){if("function"==typeof define&&define.amd)define([],e);else if("object"==typeof module&&module.exports)module.exports=e();else{var n=e();t.Alert=n.Alert,t.Button=n.Button,t.Carousel=n.Carousel,t.Collapse=n.Collapse,t.Dropdown=n.Dropdown,t.Modal=n.Modal,t.Popover=n.Popover,t.ScrollSpy=n.ScrollSpy,t.Tab=n.Tab,t.Tooltip=n.Tooltip}}(this,function(){"use strict";var t="undefined"!=typeof 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diff --git a/dist/bootstrap-native.js b/dist/bootstrap-native.js
index c2927e2c..3eadd6af 100644
--- a/dist/bootstrap-native.js
+++ b/dist/bootstrap-native.js
@@ -1052,7 +1052,7 @@
       show = function() {
         bootstrapCustomEvent.call(parent, showEvent, component, relatedTarget);
         addClass(parent,open);
-        menu[setAttribute](ariaExpanded,true);
+        element[setAttribute](ariaExpanded,true);
         bootstrapCustomEvent.call(parent, shownEvent, component, relatedTarget);
         element[open] = true;
         off(element, clickEvent, clickHandler);
@@ -1064,7 +1064,7 @@
       hide = function() {
         bootstrapCustomEvent.call(parent, hideEvent, component, relatedTarget);
         removeClass(parent,open);
-        menu[setAttribute](ariaExpanded,false);
+        element[setAttribute](ariaExpanded,false);
         bootstrapCustomEvent.call(parent, hiddenEvent, component, relatedTarget);
         element[open] = false;
         toggleDismiss();
diff --git a/dist/bootstrap-native.min.js b/dist/bootstrap-native.min.js
index 870eaca9..018210da 100644
--- a/dist/bootstrap-native.min.js
+++ b/dist/bootstrap-native.min.js
@@ -1,2 +1,2 @@
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diff --git a/lib/V3/dropdown-native.js b/lib/V3/dropdown-native.js
index b15d04b2..8a338392 100644
--- a/lib/V3/dropdown-native.js
+++ b/lib/V3/dropdown-native.js
@@ -87,7 +87,7 @@ var Dropdown = function( element, option ) {
     show = function() {
       bootstrapCustomEvent.call(parent, showEvent, component, relatedTarget);
       addClass(parent,open);
-      menu[setAttribute](ariaExpanded,true);
+      element[setAttribute](ariaExpanded,true);
       bootstrapCustomEvent.call(parent, shownEvent, component, relatedTarget);
       element[open] = true;
       off(element, clickEvent, clickHandler);
@@ -99,7 +99,7 @@ var Dropdown = function( element, option ) {
     hide = function() {
       bootstrapCustomEvent.call(parent, hideEvent, component, relatedTarget);
       removeClass(parent,open);
-      menu[setAttribute](ariaExpanded,false);
+      element[setAttribute](ariaExpanded,false);
       bootstrapCustomEvent.call(parent, hiddenEvent, component, relatedTarget);
       element[open] = false;
       toggleDismiss();
diff --git a/lib/V4/dropdown-native.js b/lib/V4/dropdown-native.js
index f971274c..fc27ae7b 100644
--- a/lib/V4/dropdown-native.js
+++ b/lib/V4/dropdown-native.js
@@ -89,7 +89,7 @@ var Dropdown = function( element, option ) {
       bootstrapCustomEvent.call(parent, showEvent, component, relatedTarget);
       addClass(menu,showClass);
       addClass(parent,showClass);
-      menu[setAttribute](ariaExpanded,true);
+      element[setAttribute](ariaExpanded,true);
       bootstrapCustomEvent.call(parent, shownEvent, component, relatedTarget);
       element[open] = true;
       off(element, clickEvent, clickHandler);
@@ -102,7 +102,7 @@ var Dropdown = function( element, option ) {
       bootstrapCustomEvent.call(parent, hideEvent, component, relatedTarget);
       removeClass(menu,showClass);
       removeClass(parent,showClass);
-      menu[setAttribute](ariaExpanded,false);
+      element[setAttribute](ariaExpanded,false);
       bootstrapCustomEvent.call(parent, hiddenEvent, component, relatedTarget);
       element[open] = false;
       toggleDismiss();