Why are my keyboard commands not working when the Mediabay is open?

When I open mediabay, I can’t use my keyboard commands anymore while mediabay is still open. I keep getting the message “The On-Screen Keyboard Filter filtered this command” (see picture). How can I fix this?
I have already tried disabling the on-screen keyboard with no success…

Hi and welcome,

In the MediaBay, you have a Virtual Instrument preset selected. In the Preview section of the MediaBay, you can see the On-screen keyboard. The On-screen keyboard “eats” the commands. Select any other preset type (Audio file, for example), to avoid the On-screen keyboard. (Unfortunately closing of MediaBay doesn’t work in this case.)