bug: SSH Connection Problem "Permission denied (public key)" While SSH to Raspberry Pi Without Robot

Overview

Received "Permission denied (publickey)" error while attempting to connect through SSH.

SSH to Raspberry Pi without a connected robot.

Steps to reproduce

Checkout opentrons/opentrons and opentrons/buildroot repositories and build the Raspberry Pi image using the "opentrons-build.sh" script.
Flash the image to the SD card and boot the Raspberry Pi.

Add the public key to the Raspberry Pi using:

curl \
-H 'Content-Type: application/json' \
-d "{\"key\":\"$(cat ot2_ssh_key.pub)\"}" \
ROBOT_IP:31950/server/ssh_keys

Attempt to connect using: ssh -i ot2_ssh_key root@ROBOT_IP Receive error: "Permission denied (publickey)."

Current behavior

I am able to interact with the Raspberry Pi, for instance:

curl http://169.254.83.221:31950/server/ssh_keys

{"public_keys": [{"key_md5": "0aa5479d9a375df07b1fe50b880e10f5", "key": "ssh-rsa AAAAB3Nz.......6yh8Jn"}]}

I am able to add the public key

curl \
-H 'Content-Type: application/json' \
-d "{\"key\":\"$(cat ot2_ssh_key.pub)\"}" \
ROBOT_IP:31950/server/ssh_keys

{"message": "Added key e662715d4bd907822bc89093d36e7bcb", "key_md5": "e662715d4bd907822bc89093d36e7bcb"}

, but when attempting SSH, I receive "Permission denied".

Also, I get a warning message in the Opentrons desktop app: "This robot's API server is not responding correctly to requests at IP address 169.254.83.221."

Expected behavior

Be able to connect to the Raspberry Pi via SSH without a robot.

Operating system

Linux

System and robot setup or anything else?

What I Have Done:

Generated SSH keys via Opentrons instructions. -> https://support.opentrons.com/s/article/Setting-up-SSH-access-to-your-OT-2
Added the public key to the Raspberry Pi via Opentrons instructions. -> https://support.opentrons.com/s/article/Setting-up-SSH-access-to-your-OT-2
Attempted to connect from different machines (Linux, WSL, Windows).
Connected through Ethernet cable and Wi-Fi.

Opentrons / opentrons