Redbird's Alloy RD1 Rudder won't be recognized

I’m not able to map the Redbird Alloy RD1 Rudder inside MSFS2020. It won’t be recognized in the controls device line.
There’s just the “Keyboard” and “Mouse”.
I’ve tried different USB ports and in Windows 10 x64 it will be recognized every time and on a different sim engine as well.
Windows calibration is done successfully.

Many thx in advance for your help!