Login from Nextcloud Neon fails since 30.0.6

Hi,

after updating the Server from 30.0.5 to 30.0.6 the Flutter mobile App is not able to login anymore.

The same App works against a 30.0.5 and fails against a 30.0.6
So i would assume that this is a server side bug or a changed (default) setting.

The (client side) used library is:

And i use their example code.
Because i can reproduce the error on 30.0.6 backend and not on 30.0.5 backend i know its not a client failure.

The server logs say:

TypeError: OCA\UserStatus\Controller\UserStatusController::__construct(): Argument #3 ($userId) must be of type string, null given at /homepages/39/d881534295/htdocs/nextcloud/apps/user_status/lib/Controller/UserStatusController.php#36

Does anyone can reproduce this problem or has some sort of help/explanation?

Thanks

Serverlog:
{"reqId":"Z7CXhOq8n2jaU4LiSIsJigAAACA","level":3,"time":"2025-02-15T13:32:52+00:00","remoteAddr":"meine.ip.ad.resse","user":"--","app":"PHP","method":"GET","url":"/nextcloud/ocs/v2.php/apps/user_status/api/v1/user_status","message":"TypeError: OCA\\UserStatus\\Controller\\UserStatusController::__construct(): Argument #3 ($userId) must be of type string, null given at /homepages/39/d881534295/htdocs/nextcloud/apps/user_status/lib/Controller/UserStatusController.php#36","userAgent":"Dart/3.3 (dart:io)","version":"30.0.6.2","data":{"app":"PHP"}}

Might be related to [Bug]: Can't login from iOS client app · Issue #50619 · nextcloud/server · GitHub, however on my installation it does not write that log message.

Thanks, that looks exactly like my problem.