Well, I just found the problem.........
I did the following:
I created an instrument Track which contains a Controller VST for the Roland JP-8080 Synth.
I played in some midi notes from my keyboard and I expected to monitor some Audio out of the Audio Chanel.
No sound tho, but when I SELECT the Audio Chanel and let a midi event play my Synth, I get sound.
So I only can hear audio from the Audio Track (when Input Monitoring is active) when I select the Audio Track?
Is there any setting to change that?
Greetings and thank you for your help!!!!