Instance task acknowledgment request has failed (ID: 5c2bd7fe-9b83-4fcc-99f5-460c2c369a0a, HTTP status code: 404)

The self-hosted runner: 291719bb-a311-4d3a-97cf-2cdf4024aa55 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("21ae59e699eb8909f75275cb07c76d5f32ce7c3c", "291719bb-a311-4d3a-97cf-2cdf4024aa55")))

Instance stop request has failed (HTTP status code: 500, body: Failed to stop backend instance (reason: backend provider not found with instance key: InstanceHashMapKey("21ae59e699eb8909f75275cb07c76d5f32ce7c3c", "291719bb-a311-4d3a-97cf-2cdf4024aa55")))

Instance stop request has failed (HTTP status code: 500, body: Failed to stop backend instance (reason: backend provider not found with instance key: InstanceHashMapKey("21ae59e699eb8909f75275cb07c76d5f32ce7c3c", "291719bb-a311-4d3a-97cf-2cdf4024aa55")))

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