diff --git a/copilot-agent-strategy/agent-365-lifecycle-atlas/CHANGELOG.md b/copilot-agent-strategy/agent-365-lifecycle-atlas/CHANGELOG.md
index cb1dcee..e64a43f 100644
--- a/copilot-agent-strategy/agent-365-lifecycle-atlas/CHANGELOG.md
+++ b/copilot-agent-strategy/agent-365-lifecycle-atlas/CHANGELOG.md
@@ -2,6 +2,11 @@
 
 All notable changes to the Agent 365 Lifecycle Atlas are documented here.
 
+## 1.2.1 - 2026-09-16
+
+- Fixed overlapping sticky headers in horizontally scrollable atlas tables
+  while preserving the page-level table header offset.
+
 ## 1.2.0 - 2026-09-16
 
 - Added an SDK-adjacent section and sequence diagram for the seven stages behind
diff --git a/copilot-agent-strategy/agent-365-lifecycle-atlas/README.md b/copilot-agent-strategy/agent-365-lifecycle-atlas/README.md
index 86c78d9..8b93e2c 100644
--- a/copilot-agent-strategy/agent-365-lifecycle-atlas/README.md
+++ b/copilot-agent-strategy/agent-365-lifecycle-atlas/README.md
@@ -6,7 +6,7 @@ summary: >-
   Explore Agent 365 lifecycles, discovery, identity, tooling, telemetry, admin
   actions, and 18 public API endpoints in one atlas.
 author: Alejandro Lopez
-version: 1.2.0
+version: 1.2.1
 published: "2026-09-10"
 updated: "2026-09-16"
 tags:
diff --git a/copilot-agent-strategy/agent-365-lifecycle-atlas/index.html b/copilot-agent-strategy/agent-365-lifecycle-atlas/index.html
index 158d5b0..675545c 100644
--- a/copilot-agent-strategy/agent-365-lifecycle-atlas/index.html
+++ b/copilot-agent-strategy/agent-365-lifecycle-atlas/index.html
@@ -132,6 +132,7 @@
 table.grid{width:100%;border-collapse:collapse;font-size:13px}
 table.grid th,table.grid td{text-align:left;padding:9px 11px;border-bottom:1px solid var(--cp-rule);vertical-align:top}
 table.grid th{font-size:11.5px;text-transform:uppercase;letter-spacing:.04em;color:var(--cp-muted);font-weight:600;border-bottom:1px solid var(--cp-rule-2);position:sticky;top:56px;background:var(--cp-paper)}
+.diagram-scroll table.grid th{top:0}
 table.grid tr:hover td{background:var(--cp-accent-tint)}
 .tag{display:inline-block;font-size:10.5px;font-weight:600;padding:1px 7px;border-radius:3px;white-space:nowrap}
 .tag.ga{color:#107c10;background:rgba(16,124,16,.10);border:1px solid rgba(16,124,16,.35)}