diff --git a/src/web-ui/src/app/components/NavPanel/NavPanel.scss b/src/web-ui/src/app/components/NavPanel/NavPanel.scss
index 03c655d3af..4defe615d6 100644
--- a/src/web-ui/src/app/components/NavPanel/NavPanel.scss
+++ b/src/web-ui/src/app/components/NavPanel/NavPanel.scss
@@ -58,6 +58,9 @@ $_section-header-height: 22px;
       flex: 1 1 auto;
       min-width: 0;
       max-width: 100%;
+      // Keep sticky headers below SceneNav even when reduced motion removes
+      // the transform that otherwise establishes this stacking context.
+      isolation: isolate;
       opacity: 1;
       transform: translate3d(0, 0, 0);
       transition: none;