Same as others I've seen. Created a landing page, published it and copied the link. Past it in browser and it works. Use that same link in a CC email and the form is in preview mode.
Frustrating.
Hello @AndrewH7558 ,
When you insert the published Landing Page link into an email that's still in Draft, whether you access that inserted link via Preview or Test Send the LP will always still show as Preview-only. Once you send your email out the LP will show as live, just as it does when pasted elsewhere.