Alright. After a long time of research i found some people causing the same issue.
Is it possible that you run your system in german language? It seems like the ne Version of ryzen master has a problem with some languages installed on systems. Iam sure there will be an Update soon, until that you can use an older Version of ryzen master, it should work fine!
Download older Version: https://www.guru3d.com/files-details/amd-ryzen-master-utility-download.html
Ref: https://community.amd.com/thread/234180
