Use

web/packages/base/crypto/ente-impl.ts

@@ -69,6 +69,10 @@ export const _decryptMetadataJSON_New = async (
     ) as unknown;
 
 export const _decryptMetadataJSON = async (r: DecryptBlobB64) =>
-    JSON.parse(
-        new TextDecoder().decode(await _decryptAssociatedDataB64(r)),
-    ) as unknown;
+    _decryptMetadataJSON_New(
+        {
+            encryptedData: r.encryptedDataB64,
+            decryptionHeader: r.decryptionHeaderB64,
+        },
+        r.keyB64,
+    );

web/packages/base/crypto/ente.ts

@@ -200,12 +200,7 @@ export const decryptMetadataJSON_New = (
           );
 
 /**
- * Decrypt the metadata JSON associated with an Ente object.
- *
- * This is the sibling of {@link encryptMetadataJSON}.
- *
- * @returns The decrypted JSON value. Since TypeScript does not have a native
- * JSON type, we need to return it as an `unknown`.
+ * Deprecated, retains the old API.
  */
 export const decryptMetadataJSON = (r: DecryptBlobB64) =>
     inWorker()