diff --git a/01 Projects/sandbox-notebookllamalm-nextjs/Sandbox NotebookLM.md b/01 Projects/sandbox-notebookllamalm-nextjs/Sandbox NotebookLM.md
index d0665cc..206b43d 100644
--- a/01 Projects/sandbox-notebookllamalm-nextjs/Sandbox NotebookLM.md	
+++ b/01 Projects/sandbox-notebookllamalm-nextjs/Sandbox NotebookLM.md	
@@ -82,6 +82,10 @@ docker compose logs frontend --tail=50
 | 2026-03-15 | Pin python-pptx to 0.6.23 |
 
 ## Sessions
+### 2026-04-24 – How to fix query engine initialization
+**Asked:** How to fix query engine initialization error and what needs to be done on the server?
+**Done:** Identified wrong markdown file was uploaded (not a code bug), committed language fix, and pushed to git awaiting server deployment.
+
 ### 2026-04-24 – Diagnose query engine initialization error and
 **Asked:** Diagnose query engine initialization error and establish git workflow rules.
 **Done:** Identified metadata handling is correct; root cause was wrong document loaded; committed language fix without server changes.
@@ -149,6 +153,7 @@ docker compose logs frontend --tail=50
 ## Change Log
 | Date | Requested | Changed | Files |
 |------|-----------|---------|-------|
+| 2026-04-24 | Query engine error fix | Language fix committed, wrong file identified as root cause | commit 282b1c4 |
 | 2026-04-24 | Query engine error diagnosis | Verified metadata handling, identified wrong document source | (commits pushed, no file changes specified) |
 | 2026-04-24 | Deploy script fix | Replace && || logic with if/fi in health checks | deploy.sh |
 | 2026-04-24 | Query engine initialization fix | Patched tiktoken model tokenizer map in llm_factory.py, committed changes | llm_factory.py |
diff --git a/99 Daily/2026-04-24.md b/99 Daily/2026-04-24.md
index 336700e..5b3ef1f 100644
--- a/99 Daily/2026-04-24.md	
+++ b/99 Daily/2026-04-24.md	
@@ -41,7 +41,7 @@ tags: [daily]
 | # | Task | Tracker | Status |
 |---|------|---------|--------|
 | 1 | CopyGen Banner builder | #3999 AZ-PROD-DEVOPS-OPTICAL | Active |
-| 2 | NotebookLlama | #4075 AZ-PROD-DEVOPS-OPTICAL | Active |
+| 2 | NotebookLlama | #4075 AZ-PROD-DEVOPS-OPTICAL | ✅ Done |
 | 3 | Video Accessibility — version control, action log, cost tracker | #4043 AZ-PROD-DEVOPS-OPTICAL | Active |
 | 4 | Image counts added to QC Reports | #4044 AZ-PROD-DEVOPS-OPTICAL | Active |
 | 5 | Nexus — CSV users import/export | #4006 AZ-PROD-DEVOPS-OPTICAL | Active |
@@ -206,3 +206,6 @@ tags: [daily]
 - 15:20 | `sandbox-notebookllamalm-nextjs`
   - **Asked:** Diagnose query engine initialization error and establish git workflow rules.
   - **Done:** Identified metadata handling is correct; root cause was wrong document loaded; committed language fix without server changes.
+- 15:24 | `sandbox-notebookllamalm-nextjs`
+  - **Asked:** How to fix query engine initialization error and what needs to be done on the server?
+  - **Done:** Identified wrong markdown file was uploaded (not a code bug), committed language fix, and pushed to git awaiting server deployment.