Ngen is running in the background in random times and messes up the DevExpress Assemblies so the Dimaster's crack for Visual Studio 2017 + DevExpress 18.2.5 (or newer) gets broken and the nag screen shows trial And not "registered".
to fix that some Folders with random names must be deleted from the assemply GAC folder of your windows and the tasks that are running in the background needed to be disable or deleted.