diff --git a/chat/preview/event-bus.ts b/chat/preview/event-bus.ts
index 537fa71..2d651b4 100644
--- a/chat/preview/event-bus.ts
+++ b/chat/preview/event-bus.ts
@@ -1,4 +1,5 @@
-import Vue from 'vue';
+// import Vue from 'vue';
+import _ from 'lodash';
 import { Character } from '../../site/character_page/interfaces';
 import { Message } from '../common';
 import { Conversation } from '../interfaces';
@@ -41,10 +42,43 @@ export interface SelectConversationEvent extends EventBusEvent {
     conversation: Conversation;
 }
 
+export type EventCallback = (data: any) => void | Promise<void>;
+
 
 // tslint:disable-next-line no-empty-interface
 export interface NoteCountsUpdate extends EventBusEvent, NoteCheckerCount {}
 
+class EventBusManager {
+    private eventCallbacks: Record<string, EventCallback[]> = {};
 
-export const EventBus = new Vue();
+    $on(eventName: string, callback: EventCallback): void {
+        this.$off(eventName, callback);
+
+        if (!(eventName in this.eventCallbacks)) {
+            this.eventCallbacks[eventName] = [];
+        }
+
+        this.eventCallbacks[eventName].push(callback);
+    }
+
+
+    $off(eventName: string, callback: EventCallback): void {
+        if (!(eventName in this.eventCallbacks)) {
+            return;
+        }
+
+        this.eventCallbacks[eventName] = _.filter(
+          this.eventCallbacks[eventName],
+          (cb) => (cb !== callback)
+        );
+    }
+
+
+    $emit(eventName: string, eventData: EventBusEvent): void {
+        _.each(this.eventCallbacks[eventName] || [], (cb) => (cb(eventData)));
+    }
+}
+
+export const EventBus = new EventBusManager();
+// export const EventBus = new Vue();
 
diff --git a/learn/cache-manager.ts b/learn/cache-manager.ts
index 3997f34..7c22e47 100644
--- a/learn/cache-manager.ts
+++ b/learn/cache-manager.ts
@@ -86,6 +86,8 @@ export class CacheManager {
 
         this.queue.push(entry);
 
+        console.log('Added to queue', entry.name, entry.added.toISOString());
+
         // console.log('AddProfileForFetching', name, this.queue.length);
     }
 
@@ -237,9 +239,12 @@ export class CacheManager {
         const scheduleNextFetch = () => {
             this.profileTimer = setTimeout(
                 async() => {
+                    const d = Date.now();
                     const next = this.consumeNextInQueue();
 
                     if (next) {
+                        console.log('Next in queue', next.name, (Date.now() - d) / 1000.0);
+
                         try {
                             // tslint:disable-next-line: binary-expression-operand-order
                             if ((false) && (next)) {
@@ -253,6 +258,8 @@ export class CacheManager {
 
                             this.queue.push(next); // return to queue
                         }
+
+                        console.log('Completed', next.name, (Date.now() - d) / 1000.0);
                     }
 
                     scheduleNextFetch();
diff --git a/site/NoteStatus.vue b/site/NoteStatus.vue
index 0f8c20b..eea4356 100644
--- a/site/NoteStatus.vue
+++ b/site/NoteStatus.vue
@@ -61,7 +61,9 @@ export default class NoteStatus extends Vue {
 
   @Hook('beforeDestroy')
   destroying(): void {
-    EventBus.$off('note-counts-update', this.callback);
+    if (this.callback) {
+      EventBus.$off('note-counts-update', this.callback);
+    }
   }