@Raspberry Be sure you use an ASIO driver in the Music Maker program settings. This will give you full playback and audio monitoring capabilities. Other drivers may be limited compared to ASIO drivers.
@Raspberry Can you show us your audio settings inside the Music Maker program settings? You can upload a screenshot to this site with the blue arrow icon above the text box.
@Raspberry Thanks, everything looks good so far. Have you clicked on the "Erweitert..." button to check your enabled inputs and outputs? Do you speak German because you are using the German user interface? Maybe you can describe your problem better in German?
Das sieht soweit ganz gut aus. Hast du schon einmal auf den Erweitert-Knopf geklickt und dort deine aktivierten Ein- und Ausgänge geprüft? Ich sehe du benutzt die deutschsprachige Oberfläche. Sprichst du Deutsch? Vielleicht kannst du dein Problem dann besser formulieren.
@Raspberry You are using an old version of Music Maker. I think the update you download is from late 2021 or early 2022.
The new version Music Maker 2023 comes with a new ASIO driver. Maybe it will work better. You could try to download and install it. It's free and will replace your old version.
You can change the language to English under the menu Datei > Einstellungen > Sprache (File > Settings > Language)