I have just generated a new PGP key pair with KGpg. I want to use the key for signing and encrypting mails. I have done that before without problems ... now it no longer works. Either I have made a mistake or something in Kubuntu 16.04 has changed.
The generation of the key was easy. I also could select the key in my KMail identity settings for purpose of encryption. Directly above that setting I tried to choose the same key for signing purpose but the key list in the selection dialog is completely empty.
I've tried everything possible, but I can not select a signature key. Also I can not start the certificate manager from that dialog (maybe that manager could help).
KGpg says about the key "Capabilities: signature, encryption, authentication, legalization" (hope I translated this correctly). It is an RSA/RSA key 4096/4096.
Does someone have an idea why I can select the key for encryption but not for signing in KMail's identity settings?