I am trying to use the Flash Messages Application, but the messages won’t appear. I remember testing it a few years ago when it worked, but I can’t figure out why it doesn’t right now. Is there something I need to configure?
Flash Messages are created as terminal pages, place of creation is /bin/view/Flash/, which is both standard, start/end date is set appropriately, group is XWikiAllGroup, App version is 1.1.10, XWiki is 17.10.12.
When you set the group, are you using XWikiAllGroup or XWiki.XWikiAllGroup?
It looks like you need the full name in order to have the messages displayed on the top banner.