Can't use Passkey in Samsung Secure Folder

I installed the 1Password App in the Secure Folder on my Samsung phone (is it called Private Space on other Android phones? I'm not sure). It can fill in usernames and passwords normally, but it can't use passkeys for any Apps or websites inside the Secure Folder. In the system dialog for choosing a passkey, 1Password isn't an option, whereas it is fine in the 'normal' system. I've set 1Password as the preferred autofill option for passwords and passkeys in the Secure Folder, so I think my settings are fine (otherwise it wouldn't autofill usernames and passwords). It seems like 1Password and the Secure Folder just don't work well together—hope this gets fixed.