Cannot view Reolink Camera Recordings from mobile App but working fine from local access

Hello,

My problem is possibly pretty simple to solve, but I somehow cannot find a solution to it.
I do have a reolink camera that works with the reolink integration and records short videos from time to time. These are saved (automatically by the integration) and then accessible via the “media” section in HA.
I can access the videos via the web UI locally but I cannot get them to play via the android companion app. It shows that there are videos but would not start playing. It does not make a difference if I am locally (VPN) or remotely using the companion app.

Any help would be highly appreciated!