Function self_copy_line 

fn self_copy_line(keys: &Keys, address: &str, computer: bool) -> String

Why an encrypted message would go without a copy for you, for address: the part of your certificate that expired or was revoked (its encryption subkey, its primary key), how to renew it (on a phone: on a computer); or that no certificate of yours for it is known here (a phone whose settings do not come through the sharing). Review of 19 October 2026, F14: it said the whole certificate had expired whatever part had, and said nothing when none was known.