Comment 1 for bug 1856311

What release is this against? Have you seen this recent change?

https://github.com/openstack/nova/commit/e6f742544432d6066f1fba4666580919eb7859bd

Also if you're saying that you think because the client posted a 'failed' event but the response contains a 200 for that event, that is working as designed:

https://docs.openstack.org/api-ref/compute/?expanded=run-events-detail#run-events

Because the 200 means the event in the request has been processed.