I am not really sure how to explain the issue so i have attached a mp4 file. The on screen keyboard seems to be very out of sync with my mouse and cursor clicks. I have reset the settings and tried f4 but still have this issue.
Find the install.cfg for the Music Maker, this is located in the program installation directory, if the default installation directory was used during installation then this is: c:\Program Files (x86)\Magix\Music Maker version
in a subfolder called 2017 or 25, depending on the version of MMM open it with Notepad
In the section [qml] - locate the line QT_OPENGL =dynamic.
Change the value dynamic to angle
Save the file and start Music Maker, the keyboard should now appear correctly