Currently OTC Image Factory team plans an infrastructure migration to latest Red Hat Update Infrastucture (RHUI) v3 in German region eu-de! Therefore all existing ECS servers running a OTC public image of Red Hat 6 and 7 without BYOL are affected.
For details see https://imagefactory.otc.t-systems.com/home/red-hat-6-and-7-migration-to-rhui-v3