Faces automatically recognised are not deletable
In macOS 10.3.0 everything works fine. After I open Fotos and a new face on a photo is recognised I can add a name or delete is by press into the cross. But since Upgrade to macOS 10.3.1 I can't delete recognised faces. It doesn't matter whether Fotos added this face or I did it manually. The delete cross is gone.
What can I do to delete wrong recognised faces?
iMac (21.5-inch Mid 2011), iOS 10.3.1