diff --git a/ui/packages/app-shell/src/views/metadata-admin/PackageFormDialog.validationTiming.test.tsx b/ui/packages/app-shell/src/views/metadata-admin/PackageFormDialog.validationTiming.test.tsx
index d39b68984a7..55986f9f0f0 100644
--- a/ui/packages/app-shell/src/views/metadata-admin/PackageFormDialog.validationTiming.test.tsx
+++ b/ui/packages/app-shell/src/views/metadata-admin/PackageFormDialog.validationTiming.test.tsx
@@ -20,6 +20,12 @@ import * as React from 'react';
 import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
 import { render, screen, fireEvent, waitFor } from '@testing-library/react';
 import { PackageFormDialog } from './PackageFormDialog';
+// The form's field labels (`engine.packages.create.*`) live in `@object-ui/i18n`'s
+// `studio` namespace, whose `zh` catalogue is fetched on demand. Resident before
+// any case, so `getByLabelText(/软件包 ID/)` reads the zh label, never the en
+// fallback while the chunk is in flight (objectstack#26863).
+import { loadStudioCatalogue } from '@object-ui/i18n/namespaces/studio';
+await loadStudioCatalogue('zh');
 
 let localeFixture: 'en-US' | 'zh-CN' = 'zh-CN';
 vi.mock('./i18n', async (importOriginal) => ({
diff --git a/ui/packages/app-shell/src/views/metadata-admin/ResourceEditPage.discardDraftLabel-12690.test.tsx b/ui/packages/app-shell/src/views/metadata-admin/ResourceEditPage.discardDraftLabel-12690.test.tsx
index 0b73f9f4ddb..6b71822341d 100644
--- a/ui/packages/app-shell/src/views/metadata-admin/ResourceEditPage.discardDraftLabel-12690.test.tsx
+++ b/ui/packages/app-shell/src/views/metadata-admin/ResourceEditPage.discardDraftLabel-12690.test.tsx
@@ -103,6 +103,12 @@ import { MetadataResourceEditPage } from './ResourceEditPage';
 import { registerDefaultMetadataSchemas } from './default-schemas';
 import { registerBuiltinPreviews } from './previews';
 import { tFormat } from './i18n';
+// The `engine.edit.*` rows this suite reads in zh (the `丢弃草稿` button, the
+// confirm and the toast) live in `@object-ui/i18n`'s `studio` namespace, whose
+// `zh` catalogue is fetched on demand. Resident before any case, so the zh rows
+// are read after the catalogue lands, never racing it (objectstack#26863).
+import { loadStudioCatalogue } from '@object-ui/i18n/namespaces/studio';
+await loadStudioCatalogue('zh');
 
 const DOC_JSON_SCHEMA = z.toJSONSchema(DocSchema as unknown as z.ZodType) as Record<string, unknown>;
 client.current = new MetadataClient({ baseUrl: '', fetch: vi.fn(serve) as unknown as typeof fetch });
diff --git a/ui/packages/app-shell/src/views/metadata-admin/ResourceEditPage.environmentOverlay-12141.test.tsx b/ui/packages/app-shell/src/views/metadata-admin/ResourceEditPage.environmentOverlay-12141.test.tsx
index 52fc5171b93..426c562d63c 100644
--- a/ui/packages/app-shell/src/views/metadata-admin/ResourceEditPage.environmentOverlay-12141.test.tsx
+++ b/ui/packages/app-shell/src/views/metadata-admin/ResourceEditPage.environmentOverlay-12141.test.tsx
@@ -74,6 +74,12 @@ vi.mock('./i18n', async (importOriginal) => ({
 }));
 
 import { MetadataResourceEditPage } from './ResourceEditPage';
+// The read-only banner (`engine.edit.readOnlyTypeBanner`) lives in
+// `@object-ui/i18n`'s `studio` namespace, whose `zh` catalogue is fetched on
+// demand. Resident before any case, so the zh banner is read after the
+// catalogue lands, never racing it (objectstack#26863).
+import { loadStudioCatalogue } from '@object-ui/i18n/namespaces/studio';
+await loadStudioCatalogue('zh');
 
 /** An item a code package ships, as the layered read serves it. */
 function packagedItem() {