Instance task acknowledgment request has failed (ID: ea23d630-350e-43ee-8761-93a62b5c1bc5, HTTP status code: 404)

The self-hosted runner: d1f490a7-c9bb-4097-90ee-e550a52129f7 lost communication with the server. Verify the machine is running and has a healthy network connection. Anything in your workflow that terminates the runner process, starves it for CPU/Memory, or blocks its network access can cause this error.

Instance stop request has failed (HTTP status code: 500, body: Failed to stop backend instance (reason: backend provider not found with instance key: InstanceHashMapKey("e00ccea54ba5034cd131c8529cb2606336efad52", "d1f490a7-c9bb-4097-90ee-e550a52129f7")))

Instance stop request has failed (HTTP status code: 500, body: Failed to stop backend instance (reason: backend provider not found with instance key: InstanceHashMapKey("e00ccea54ba5034cd131c8529cb2606336efad52", "d1f490a7-c9bb-4097-90ee-e550a52129f7")))

Instance stop request has failed (HTTP status code: 500, body: Failed to stop backend instance (reason: backend provider not found with instance key: InstanceHashMapKey("e00ccea54ba5034cd131c8529cb2606336efad52", "d1f490a7-c9bb-4097-90ee-e550a52129f7")))

Instance stop request has failed after 3 attempts

Cannot read properties of undefined (reading 'task_id')

ubuntu-latest pipelines will use ubuntu-24.04 soon. For more details, see https://github.com/actions/runner-images/issues/10636