Create goal AI Assist can't be published from sandbox

Summary:

I would like to adjust the format of the create goals AI Assist so that the description starts with the same introduction in line with organisation policy but no changes are captured in the sandbox to publish.

Content (please ensure you mask any confidential information):

I have attempted to customise the create goals AI assist prompt so that each description starts with the words "It is DATE and I have…..". When I have adjusted the prompt and previewed the outcome this appears to be producing the required result but there are no changes captured in the Sandbox to publish.