Firebase instanceFor returns internal error with correct Firebase Emulator region.

[MiloshN]

Hi,
Default example from documentation work, but when set specific region (correct on both sides, firebase function, and flutter) not working, returns an internal error.

`✔ functions: Using node@20 from host.
Serving at port 8483

✔ functions: Loaded functions definitions from source: updateUserInCollection, likePost, unlikePost, applyPost, unapplyPost, sendPushNotificationApproved, sendPushNotificationCancelled, likeNews, unlikeNews, clearUserData.`

exports.updateUserInCollection = functions .region(REGION) .https.onCall(async (data, context) => { .... })...

Future<Map<String, dynamic>> updateUserInCollection({ required Map<String, dynamic> data, }) async { final callable = FirebaseFunctions.instanceFor(region: Strings.ffRegion or europe-west3) .httpsCallable(Strings.ffUpdateUserInCollection (or updateUserInCollection)); final res = await callable.call<Map<String, dynamic>>(data); return res.data; }

Any idea? Why region broke everything?