@chatii A possible cause is the client/server is attempting key exchange with ssh-rsa (RSA with SHA1) which is not supported. 1Password currently only supports rsa-sha2-512 and rsa-sha2-256 for RSA keys. A quick way to test is with the following command:

```

Github supports rsa-sha2 and it takes precedence over ssh-rsa

ssh -vvT git@github.com ls |& grep 'peer server KEXINIT proposal' -A3 | grep 'host key algorithms'
debug2: host key algorithms: ssh-ed25519,ecdsa-sha2-nistp256,rsa-sha2-512,rsa-sha2-256,ssh-rsa

Azure DevOps only supports ssh-rsa

ssh -vvT git@ssh.dev.azure.com ls |& grep 'peer server KEXINIT proposal' -A3 | grep 'host key algorithms'
debug2: host key algorithms: ssh-rsa
```

If rsa-sha2 is supported, but has lower preference than ssh-rsa, PubkeyAcceptedKeyTypes in ~/.ssh/config can be used to remove it from the proposed lois