My Navigation menus have diisappeared

My navigation menus were on all of my pages and today I see they are gone.  When I go to the advanced settings for Size and Position, then under Element Appearance, there is no category for Show on all pages. There is no toggle that is turned off, so no toggle to turn it back on.  These instructions came from your page https://community.homestead.com/conversations/websitebuilder/websitebuilder-show-on-all-pages/5f2a9b1f58180958845bb1c2.   Please advise on how to get my menus back on all pages.