diff --git a/.playwright-mcp/after-scroll.png b/.playwright-mcp/after-scroll.png
new file mode 100644
index 0000000..cf3d70a
Binary files /dev/null and b/.playwright-mcp/after-scroll.png differ
diff --git a/.playwright-mcp/scroll-containment-check.png b/.playwright-mcp/scroll-containment-check.png
new file mode 100644
index 0000000..cf3d70a
Binary files /dev/null and b/.playwright-mcp/scroll-containment-check.png differ
diff --git a/changelog.md b/changelog.md
index 60d886a..63f90a0 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 2026-01-03 - 3.29.1 - fix(dees-appui)
+prevent main grid overflow by adding overflow:hidden; and add Playwright scroll containment screenshots
+
+- Add overflow: hidden to .maingrid in ts_web/elements/00group-appui/dees-appui/dees-appui.ts to prevent content from escaping during grid-template-columns transitions.
+- Add Playwright artifacts: .playwright-mcp/after-scroll.png and .playwright-mcp/scroll-containment-check.png (screenshots for scroll containment testing).
+
 ## 2026-01-03 - 3.29.0 - feat(docs)
 add documentation for new input components, activity log features, theming, and expand DeesAppui docs
 
diff --git a/ts_web/00_commitinfo_data.ts b/ts_web/00_commitinfo_data.ts
index 3c7d941..bc0325d 100644
--- a/ts_web/00_commitinfo_data.ts
+++ b/ts_web/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@design.estate/dees-catalog',
-  version: '3.29.0',
+  version: '3.29.1',
   description: 'A comprehensive library that provides dynamic web components for building sophisticated and modern web applications using JavaScript and TypeScript.'
 }
diff --git a/ts_web/elements/00group-appui/dees-appui/dees-appui.ts b/ts_web/elements/00group-appui/dees-appui/dees-appui.ts
index c6dd929..da736cb 100644
--- a/ts_web/elements/00group-appui/dees-appui/dees-appui.ts
+++ b/ts_web/elements/00group-appui/dees-appui/dees-appui.ts
@@ -185,6 +185,7 @@ export class DeesAppui extends DeesElement {
         /* grid-template-columns set dynamically in template */
         grid-template-rows: 1fr;
         transition: grid-template-columns 0.3s ease;
+        overflow: hidden;
       }
 
       /* Z-index layering for proper stacking */