iOS app turning off Face ID

I don’t know if this is some known issue or if I need to raise this as a bug. This is on an iPhone 16, iOS 18.1.1.

I go into Bitwarden’s app and I set the following

Unlock Options - Unlock with Face ID
Session timeout - Never
Session timeout action - Log out

And for a while, things will be fine. Face ID will work for autofilling fields. And then, with no warning, Bitwarden will stop logging me into apps. Instead it will prompt me for my master password, but every time I put it in, it drops me back to the login screen and asks for the master password again.

The only way to resolve this is to come out of whatever app it is I’m trying to login to, go to Bitwarden’s settings, and re-enable Face ID after logging in with my master password.

This is intensely annoying and not a problem I ever encountered when I was using an Android phone. Why is it logging me out? Why is it not accepting the master password unless I specifically open up the Bitwarden app and log in that way?

This may not help you but I have these are my settings

Session Timeout - 1 minute
Session timeout action - Lock

Maybe try using these to see if you find it better.