diff --git a/core/http/react-ui/e2e/import-form-ux-batch-d.spec.js b/core/http/react-ui/e2e/import-form-ux-batch-d.spec.js
index 26fe2f0cc..30a74de89 100644
--- a/core/http/react-ui/e2e/import-form-ux-batch-d.spec.js
+++ b/core/http/react-ui/e2e/import-form-ux-batch-d.spec.js
@@ -52,10 +52,10 @@ async function enterPowerPreferences(page) {
 }
 
 // Backend dropdown trigger — the SearchableSelect button has
-// `aria-haspopup="listbox"`. There's exactly one on the Power/Preferences
-// page so the first match is stable.
+// `aria-haspopup="listbox"`. The LanguageSwitcher in the sidebar uses the
+// same attribute, so scope to the <main> content area to skip it.
 function backendTrigger(page) {
-  return page.locator('button[aria-haspopup="listbox"]').first()
+  return page.locator('main button[aria-haspopup="listbox"]').first()
 }
 
 async function selectBackend(page, name) {
diff --git a/core/http/react-ui/e2e/import-form-ux-batch-e.spec.js b/core/http/react-ui/e2e/import-form-ux-batch-e.spec.js
index ace9bb43a..8a20abc90 100644
--- a/core/http/react-ui/e2e/import-form-ux-batch-e.spec.js
+++ b/core/http/react-ui/e2e/import-form-ux-batch-e.spec.js
@@ -59,7 +59,10 @@ function chip(page, key) {
 }
 
 function backendTrigger(page) {
-  return page.locator('button[aria-haspopup="listbox"]').first()
+  // Scope to <main>: the LanguageSwitcher in the sidebar also uses
+  // aria-haspopup="listbox", so an unscoped .first() selector picks it
+  // instead of the backend dropdown.
+  return page.locator('main button[aria-haspopup="listbox"]').first()
 }
 
 test.describe('Import form UX — Batch E (modality chip row)', () => {