After fresh install (because incremental upgrade keep restarting machine after reboot) I was not able connect to ssh host using private key to sshd servers as in previous installation or anywhere else.
ssh-add ~/.ssh/my.openssl.ppk ssl-add -l **1024** SHA256:dfjhljlkjlkjlkuyhfuyfd /home/my/.ssh/my.openssl.ppk (RSA) 2048 SHA256:fdkhlhdshgdaasdfg my@mypc (RSA) ssh -vvv bitbucket debug1: Host 'bitbucket.com' is known and matches the RSA host key. debug1: Found key in /home/my/.ssh/known_hosts:34 debug1: rekey out after 134217728 blocks debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: rekey in after 134217728 blocks **debug1: pubkey_prepare: ignoring ssh-rsa agent key: Invalid key length** debug1: Will attempt key: /home/my/.ssh/id_rsa RSA SHA256:fdkhlhdshgdaasdfg agent debug1: Will attempt key: /home/my/.ssh/id_dsa debug1: Will attempt key: /home/my/.ssh/id_ecdsa debug1: Will attempt key: /home/my/.ssh/id_ecdsa_sk debug1: Will attempt key: /home/my/.ssh/id_ed25519 debug1: Will attempt key: /home/my/.ssh/id_ed25519_sk debug1: Will attempt key: /home/my/.ssh/id_xmss debug1: SSH2_MSG_EXT_INFO received debug1: kex_input_ext_info: server-sig-algs=<rsa-sha2-256,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,email@example.com,firstname.lastname@example.org,ssh-rsa,email@example.com,firstname.lastname@example.org,email@example.com,rsa-sha2-512> debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey debug1: Next authentication method: publickey debug1: Offering public key: /home/my/.ssh/id_rsa RSA SHA256:fdkhlhdshgdaasdfg agent debug1: Authentications that can continue: publickey debug1: Trying private key: /home/my/.ssh/id_dsa debug1: Trying private key: /home/my/.ssh/id_ecdsa debug1: Trying private key: /home/my/.ssh/id_ecdsa_sk debug1: Trying private key: /home/my/.ssh/id_ed25519 debug1: Trying private key: /home/my/.ssh/id_ed25519_sk debug1: Trying private key: /home/my/.ssh/id_xmss debug1: No more authentication methods to try. firstname.lastname@example.org: Permission denied (publickey).
Issue is probably increased minimal RSA key length above 1024 in distro so ssh almost silently refuses to login.
Solution is to create new key pair and register public key in remote ssh server in ~/.ssh/authorized_keys again.
ssh-keygen -t rsa -b 4096 ssh-add etc.