We are trying to replay the events with this endpoint https://api-mq.integration.oddin.gg/v1/replay/events/od:match:XYZ but are getting an HTTP 404 response.…

Is there any other good way to trigger a fixture_change message?

The events to be replayed must be at least 48 hours but not more than 5 days old. Replaying a match will send you all the messages for this match, including fixture_changes. In a regular feed (whether this is the Integration or Production environment), you can trigger the fixture_change messages that came after a certain timestamp by using the /fixture_change API endpoint, but you cannot do it on a per-match basis.