Message base hides if an entry is deleted then recreated
So... I have a message base entry - works fine and displays on the front end in PROD and DEV.
However I need to amend the length so I delete it, recreate it and do what I need to.
It shows properly in DEV but doesn't show in PROD. I have to stage/promote the page for the changes to kick in on production.
Any reason why? We're on May 2017.. 3.6 of the framework.