Problems with Safari on IOS

Bitwarden runs on a local docker container for me and everything works fine with WindowsApp, Browser etc. In IOS, the App works fine as well, certificate is installed. When trying to access a password via Safari, I have problems. In the App, I have faceid enabled and Password Autofill activated and the App Extensiopn activated. In Safari the URL is detected and Bitwarden offers to insert the username. When clicking on this, I am asked to inout my masterpassword with a note, that FaceId/Biometric would not work until the Masterpassword is inserted. If I insert the master password Safari returns to the Webpage without filling in name/password. I can then repeat this forever and everytime the master password is requested. Whats wrong?

Thank you,