diff --git a/frontend/app/components/Session_/Player/Controls/DraggableCircle.tsx b/frontend/app/components/Session_/Player/Controls/DraggableCircle.tsx
index 9bdf37651..f4ebd6abf 100644
--- a/frontend/app/components/Session_/Player/Controls/DraggableCircle.tsx
+++ b/frontend/app/components/Session_/Player/Controls/DraggableCircle.tsx
@@ -19,7 +19,7 @@ function getStyles(
         // because IE will ignore our custom "empty image" drag preview.
         opacity: isDragging ? 0 : 1,
         height: isDragging ? 0 : '',
-        zIndex: '99999',
+        zIndex: '99',
         cursor: 'move'
     }
 }
diff --git a/frontend/app/components/Session_/Player/Controls/Timeline.js b/frontend/app/components/Session_/Player/Controls/Timeline.js
index 69b228d7d..51c4144b5 100644
--- a/frontend/app/components/Session_/Player/Controls/Timeline.js
+++ b/frontend/app/components/Session_/Player/Controls/Timeline.js
@@ -10,6 +10,7 @@ import { TYPES } from 'Types/session/event';
 import { setTimelinePointer } from 'Duck/sessions';
 import DraggableCircle from './DraggableCircle';
 import CustomDragLayer from './CustomDragLayer';
+import { debounce } from 'App/utils';
 
 const getPointerIcon = (type) => {
   // exception, 
@@ -52,6 +53,8 @@ const getPointerIcon = (type) => {
   return 'info';    
 }
 
+
+let deboucneJump = () => null;
 @connectPlayer(state => ({
   playing: state.playing,
   time: state.time,
@@ -95,6 +98,7 @@ export default class Timeline extends React.PureComponent {
   componentDidMount() {
     const { issues, skipToIssue } = this.props;
     const firstIssue = issues.get(0);
+    deboucneJump = debounce(this.props.jump, 500);
 
     if (firstIssue && skipToIssue) {
       this.props.jump(firstIssue.time);
@@ -112,7 +116,7 @@ export default class Timeline extends React.PureComponent {
 
     const p = (offset.x - 60) / this.progressRef.current.offsetWidth;
     const time = Math.max(Math.round(p * endTime), 0);
-    this.props.jump(time);
+    deboucneJump(time);
     if (this.props.playing) {
       this.wasPlaying = true;
       this.props.pause();