Unable to use 1Password SSH agent at work (RSA 2048, Azure DevOps)

K_J__1P Maybe we're mixing up terminology, but my keys are in my Personal vault (I believe Personal is used with 1password.com subscriptions, while Private was used for stand-alone vaults?).

Do these logs help?

Successful login using a private key stored as a file on my filesystem:

debug3: sign_and_send_pubkey: RSA SHA256:<fingerprint>
debug3: sign_and_send_pubkey: signing using ssh-rsa
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 52
debug1: Authentication succeeded (publickey).


Failed login using 1Password SSH Agent:

debug3: preferred publickey
debug3: authmethod_lookup publickey
debug3: remaining preferred:
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering public key: /Users/me/.ssh/key-1password.pub RSA SHA256:<fingerprint> explicit agent
debug3: send packet: type 50
debug2: we sent a publickey packet, wait for reply
debug3: receive packet: type 60
debug1: Server accepts key: /Users/me/.ssh/key-1password.pub RSA SHA256:<fingerprint4> explicit agent
debug3: sign_and_send_pubkey: RSA SHA256:<fingerprint>
debug3: sign_and_send_pubkey: signing using ssh-rsa
sign_and_send_pubkey: signing failed: agent refused operation


The redacted <fingerprint> is identical in all places.

(I'm using your Match key with host approach)