I just run an "aio app undeploy" after changing the manifest.yaml and had the following error:
maybe it tries to "undeploy" the items according to the new values in the manifest.yaml but not what has been deployed? don't know what problems that might cause - I assume that if all alarm-triggers, rules and actions change the name in manifest.yaml, they would just run again (and throwing an error then stopping?) maybe other issues?