Groove Agent 5 works fine as standalone but when I load it as a VST instrument in Cubase 13 Pro there is no sound. When I play a pattern I can see activity on the faders in the Agent tab but nothing is getting to the kit mix even though I have set the output for each instrument to kit mix.
On the far right section of the GA mixer that are tabs to show either the room/OH channel or the Kit Mix channel. Has the fader in the Kit Mix channel been muted or turned all the way down?
I can see that there is activity on the fader here and the level is at 0db. There is no mute button. Still no action on the fader in the kits tab.
Your description seems like the result one gets when the whole Kit is muted, using the “m” that’s in each of the 4 Kit boxes at the top of screen.
When that mute is activated, the Agent tab faders will show activity, as well as the Rev/Mix panel on the right, but the Kits fader will be silent.
So, I’m guessing you either have mute on or there’s a bug which is muting the kit but not showing the mute happening. Try toggling the mute and solo buttons and see what happens?