SSH agent on Linux keeps asking for authorization

Hello, I would like to ask about an issue related to the SSH agent.

I configured the SSH agent in the 1Password desktop app like the https://developer.1password.com/docs/ssh/get-started#adjust-your-authorization-options:
- Ask approval for each new: application
- Remember key approval: for 12 hours
- Integrate with 1Password CLI: checked
- I added the IdentityAgent line into my .ssh/config

https://ibb.co/s2qKJLQ

And yet, I get an authorization prompt every time I start a new terminal and I have to type my password again. This is rather irksome. My impression was that with these settings the 1Password agent should ask for key approval only once and then after 12 hours have passed.

Is there a bug with the SSH agent on Linux or have I just misunderstood how this was supposed to work?