Hi!
I’m facing the same issue here. The labels doesn’t show on editing mode, only on prod. When I click on “+ Add success message” or “+ Add a failure message” nothing happens.
--------- SOLVED (edit) ---------
Reading this comment I found that “Hidden Elements” checkbox and unmarked and marked it again, and now it’s working as it should. https://www.wix.com/code/home/forum/questions-answers/help-issues-with-your-content-has-been-submitted
OS: Windows.
Browser: Chorme, Firefox and Edge.
Thanks!