We have a SharePoint Server 2019 farm with one web app with several host header site collections.
I followed the steps in https://docs.microsoft.com/en-us/sharepoint/administration/custom-tiles-in-sharepoint-server-2016, but no tiles are showing in app launcher.
Yes, tried to clear the cache with the "ClearSuiteLinksCache()" command in browser and open (several different browsers) in private mode.
Any ideas?