diff --git a/frontend/playwright/ui/render-wasm-specs/shapes.spec.js b/frontend/playwright/ui/render-wasm-specs/shapes.spec.js
index 74b83d1940..a85b70887e 100644
--- a/frontend/playwright/ui/render-wasm-specs/shapes.spec.js
+++ b/frontend/playwright/ui/render-wasm-specs/shapes.spec.js
@@ -7,6 +7,12 @@ test.beforeEach(async ({ page }) => {
     "enable-feature-render-wasm",
     "enable-render-wasm-dpr",
   ]);
+  // Opening a wasm workspace backfills :position-data for text shapes, persisting the file.
+  await WasmWorkspacePage.mockRPC(
+    page,
+    "update-file?id=*",
+    "text-editor/update-file.json",
+  );
 });
 
 test("Renders a file with basic shapes, boards and groups", async ({
diff --git a/frontend/playwright/ui/render-wasm-specs/texts.spec.js b/frontend/playwright/ui/render-wasm-specs/texts.spec.js
index f660356d91..4122d7e307 100644
--- a/frontend/playwright/ui/render-wasm-specs/texts.spec.js
+++ b/frontend/playwright/ui/render-wasm-specs/texts.spec.js
@@ -7,6 +7,12 @@ test.beforeEach(async ({ page }) => {
     "enable-feature-render-wasm",
     "enable-render-wasm-dpr",
   ]);
+  // Opening a wasm workspace backfills :position-data for text shapes, persisting the file.
+  await WasmWorkspacePage.mockRPC(
+    page,
+    "update-file?id=*",
+    "text-editor/update-file.json",
+  );
 });
 
 async function mockGetEmojiFont(workspace) {