diff --git a/frontend/app/components/Session_/PageInsightsPanel/components/SelectorsList/SelectorsList.tsx b/frontend/app/components/Session_/PageInsightsPanel/components/SelectorsList/SelectorsList.tsx
index fabdca831..183b9754e 100644
--- a/frontend/app/components/Session_/PageInsightsPanel/components/SelectorsList/SelectorsList.tsx
+++ b/frontend/app/components/Session_/PageInsightsPanel/components/SelectorsList/SelectorsList.tsx
@@ -13,7 +13,7 @@ function SelectorsList() {
     return (
         <NoContent title="No data available." size="small" show={targets && targets.length === 0}>
             <div className={stl.wrapper}>
-                {targets && targets.map((target, index) => <SelectorCard target={target} index={index} showContent={activeTargetIndex === index} />)}
+                {targets && targets.map((target, index) => <React.Fragment key={index}><SelectorCard target={target} index={index} showContent={activeTargetIndex === index} /></React.Fragment>)}
             </div>
         </NoContent>
     );
diff --git a/frontend/app/components/Session_/Player/Overlay/ElementsMarker.tsx b/frontend/app/components/Session_/Player/Overlay/ElementsMarker.tsx
index 99499cac6..7be45a432 100644
--- a/frontend/app/components/Session_/Player/Overlay/ElementsMarker.tsx
+++ b/frontend/app/components/Session_/Player/Overlay/ElementsMarker.tsx
@@ -1,9 +1,7 @@
 import React from 'react';
 import Marker from './ElementsMarker/Marker';
+import type { MarkedTarget } from 'Player';
 
-export default function ElementsMarker({ targets, activeIndex }) {
-  return targets && targets.map(t => <Marker target={t} active={activeIndex === t.index}/>)
+export default function ElementsMarker({ targets, activeIndex }: { targets: MarkedTarget[], activeIndex: number }) {
+  return targets && targets.map(t => <React.Fragment key={t.index}><Marker target={t} active={activeIndex === t.index}/></React.Fragment>)
 }
-
-
-
diff --git a/frontend/app/components/Session_/PlayerBlockHeader.tsx b/frontend/app/components/Session_/PlayerBlockHeader.tsx
index 1932ccb85..744db22cc 100644
--- a/frontend/app/components/Session_/PlayerBlockHeader.tsx
+++ b/frontend/app/components/Session_/PlayerBlockHeader.tsx
@@ -31,7 +31,6 @@ function PlayerBlockHeader(props: any) {
   const { assistMultiviewStore } = useStore();
 
   const { width, height, showEvents } = store.get();
-  const toggleEvents = player.toggleEvents;
 
   const {
     session,
@@ -147,10 +146,10 @@ function PlayerBlockHeader(props: any) {
             onClick={(tab) => {
               if (activeTab === tab) {
                 setActiveTab('');
-                toggleEvents();
+                player.toggleEvents();
               } else {
                 setActiveTab(tab);
-                !showEvents && toggleEvents();
+                !showEvents && player.toggleEvents();
               }
             }}
             border={false}