As already explained by Matthias, this is absolutely normal when using the MADIface ASIO driver!
The "Advanced" tab you mentioned above will always show just the native sample rate of the currently played back track. That also means that if no application is running which is currently actively using the ASIO driver, the "Advanced" tab will show somehing like "The device you try to configure has been removed". By the way: Have you ever noticed the "MADIface Series Settings" behind the "burning" RME Symbol in the System Tray? There you can also see, which sample rate is the current one (depending on the current tracks sample rate). Give it a try and don't worry... everything is like it is intended to be. If you want to use the USB Class Compliant mode, you will have to remove the MADIface driver and then you can change the sample rates again...but you also lose the ASIO functionality. That is you allow Windows to "manipulate" the audiostream. Most users (including myself) don't want to see that happen but want a bit perfect, transparent playback of the original!
If you expect to be able to introduce any up/downsampling -> This is is not supported by the driver and to be honest it makes no sense at all. If you still want to have it for any reason, you will need an application that will up- or downsample the track before it "enters" the driver.
Have fun!
Cheers
Olli
RME ADI2-DAC FS | Intel NUC8i7
Rotel RB1582 MKII amp
Infinity Kappa 8.2i speakers
Audirvana player