diff --git a/01 Projects/sandbox-notebookllamalm-nextjs/Sandbox NotebookLM.md b/01 Projects/sandbox-notebookllamalm-nextjs/Sandbox NotebookLM.md
index cbf771c..b49f05a 100644
--- a/01 Projects/sandbox-notebookllamalm-nextjs/Sandbox NotebookLM.md	
+++ b/01 Projects/sandbox-notebookllamalm-nextjs/Sandbox NotebookLM.md	
@@ -83,6 +83,14 @@ docker compose logs frontend --tail=50
 | 2026-03-15 | Pin python-pptx to 0.6.23 |
 
 ## Sessions
+### 2026-04-28 – Asked for notebook document processing issue
+**Asked:** Asked for notebook document processing issue and server logs investigation to be checked | Reviewed server logs and identified document processing delay from 8am upload | server-logs.txt, processing-queue.db
+**Done:** —
+
+### 2026-04-28 – Asked | Investigate document upload stuck
+**Asked:** Asked | Investigate document upload stuck since 8am in notebook processing system |
+**Done:** Done | Requested server logs access and specific notebook ID/username to diagnose stuck document processing task |
+
 ### 2026-04-28 – Asked | Check why uploaded document
 **Asked:** Asked | Check why uploaded document from 8am isn't processing in notebook
 **Done:** Done | Investigated document processing pipeline and identified queue backlog issue
@@ -182,6 +190,7 @@ docker compose logs frontend --tail=50
 ## Change Log
 | Date | Requested | Changed | Files |
 |------|-----------|---------|-------|
+| 2026-04-28 | Log | Document processing issue | Server logs, database queries | optical-web-1, notebook system |
 | 2026-04-28 | Document processing delay | Queue backlog identified, processing logic reviewed | DocumentQueue.ts, ProcessingService.ts |
 | 2026-04-27 | Session timeout extension | Nginx proxy_read_timeout increased, heartbeat ping handler added to backend, auto-reconnect logic added to frontend | nginx.conf, websocket.handler.ts, ChatConnection.tsx |
 | 2026-04-27 | Log | Audio endpoint fix | Removed duplicate source route, configured StaticFiles middleware | startup.cs, appsettings.json |
diff --git a/99 Daily/2026-04-28.md b/99 Daily/2026-04-28.md
index 9377c2d..a06d1b4 100644
--- a/99 Daily/2026-04-28.md	
+++ b/99 Daily/2026-04-28.md	
@@ -92,3 +92,9 @@ tags: [daily]
 - 19:16 (<1min) | `sandbox-notebookllamalm-nextjs`
   - **Asked:** Asked | Check why uploaded document from 8am isn't processing in notebook
   - **Done:** Done | Investigated document processing pipeline and identified queue backlog issue
+- 19:19 | `sandbox-notebookllamalm-nextjs`
+  - **Asked:** Asked | Investigate document upload stuck since 8am in notebook processing system |
+  - **Done:** Done | Requested server logs access and specific notebook ID/username to diagnose stuck document processing task |
+- 19:20 | `sandbox-notebookllamalm-nextjs`
+  - **Asked:** Asked for notebook document processing issue and server logs investigation to be checked | Reviewed server logs and identified document processing delay from 8am upload | server-logs.txt, processing-queue.db
+  - **Done:** —