diff --git a/web/app/components/header/index.tsx b/web/app/components/header/index.tsx
index 2c1f3ca32e..c1b2da8b13 100644
--- a/web/app/components/header/index.tsx
+++ b/web/app/components/header/index.tsx
@@ -113,14 +113,6 @@ const Header = () => {
         {!isCurrentWorkspaceDatasetOperator && <ToolsNav className={navClassName} />}
       </div>
       <div className="flex min-w-0 flex-1 items-center justify-end pr-3 pl-2 min-[1280px]:pl-3">
-        <button
-          type="button"
-          data-testid="workflow-import-log-download"
-          className="top-1/2 left-full ml-1 h-3 w-3 -translate-y-1/2 opacity-0"
-          aria-hidden="true"
-          tabIndex={-1}
-          onClick={handleDownloadGraphImportLog}
-        />
         <EnvNav />
         <div className="mr-2">
           <PluginsNav />
diff --git a/web/app/components/workflow/collaboration/core/collaboration-manager.ts b/web/app/components/workflow/collaboration/core/collaboration-manager.ts
index 33c5e3dd87..5fa1545328 100644
--- a/web/app/components/workflow/collaboration/core/collaboration-manager.ts
+++ b/web/app/components/workflow/collaboration/core/collaboration-manager.ts
@@ -118,6 +118,7 @@ export class CollaborationManager {
   private reactFlowStore: ReactFlowStore | null = null
   private isLeader = false
   private leaderId: string | null = null
+  private onlineUsers: OnlineUser[] = []
   private cursors: Record<string, CursorPosition> = {}
   private nodePanelPresence: NodePanelPresenceMap = {}
   private activeConnections = new Set<string>()
@@ -557,6 +558,7 @@ export class CollaborationManager {
     this.currentAppId = null
     this.reactFlowStore = null
     this.cursors = {}
+    this.onlineUsers = []
     this.nodePanelPresence = {}
     this.isUndoRedoInProgress = false
     this.rejoinInProgress = false
@@ -1345,6 +1347,7 @@ export class CollaborationManager {
         if (data.leader && typeof data.leader === 'string')
           this.leaderId = data.leader
 
+        this.onlineUsers = data.users
         this.eventEmitter.emit('onlineUsers', data.users)
         this.eventEmitter.emit('cursors', { ...this.cursors })
       }
@@ -1383,10 +1386,12 @@ export class CollaborationManager {
 
     socket.on('disconnect', (reason) => {
       this.cursors = {}
+      this.onlineUsers = []
       this.isLeader = false
       this.leaderId = null
       this.pendingInitialSync = false
       this.eventEmitter.emit('stateChange', { isConnected: false, disconnectReason: reason })
+      this.eventEmitter.emit('onlineUsers', [])
       this.eventEmitter.emit('cursors', {})
     })