Instance task acknowledgment request has failed (ID: 1107a751-1ec7-4251-9665-c9c58edae05c, HTTP status code: 404)

The self-hosted runner: b41dc055-5f10-4dee-baf4-e4631a802718 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("d10388df4c4f6d1d646c7d02af4177fce8985880", "b41dc055-5f10-4dee-baf4-e4631a802718")))

Instance stop request has failed (HTTP status code: 500, body: Failed to stop backend instance (reason: backend provider not found with instance key: InstanceHashMapKey("d10388df4c4f6d1d646c7d02af4177fce8985880", "b41dc055-5f10-4dee-baf4-e4631a802718")))

Instance stop request has failed (HTTP status code: 500, body: Failed to stop backend instance (reason: backend provider not found with instance key: InstanceHashMapKey("d10388df4c4f6d1d646c7d02af4177fce8985880", "b41dc055-5f10-4dee-baf4-e4631a802718")))

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