Does this features work page types? If yes, please go to Modules > Forms > User interface and check visibility condition. By default you should have
CurrentUser.IsAuthorizedPerResource("cms.form", "ReadForm") && EditedObject.FormDevelopmentModel == 0
if you have other, please update it to the correct version. You can also try to remove condition and check if this problem is related to the condition.
Check the following screenshot https://prnt.sc/nny9re