No audio signal - Mac Catalina?

[Dee Gee]

No, I can’t hear my own track at all, I can just hear the jam track that I want to play along to. I know my keyboard and mic are sending a signal, I can see it at the interface but it’s simply not getting through to Jamkazam. But as I said I can get a signal through to other apps like Logic to make a recording. 

Is this a problem of 64bit Catalina OS? The app installed ok, I didn’t need to force it. It’s weird that the audio player in Jamkazam is happily getting through the interface though.

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Forget the play along track for a second. Let's try to get your audio in/through/and back at your audio interface first. Success in other apps also have no bearing on the workings of JKZ.

When you configured your audio gear in JKZ, could you hear the test ping in your headphones?

I have the same problem with Catalina- I can here other musicians, test sound and metronome, but sound from my audio interface and even the integrated mic of my MacBook brings no sound into JKZ,  no one can here me, no level in volume level and I'm grey in my display. Same configuration works with DAW, And same audio/network configuration worked three weeks ago with older OS Version.
JKZ was in Quarantäne of Catalina, but to take it out from quarantine, as mentioned in this forum did not help. Any clue?

Meanwhile I found out that Security > Privacy > Microphone > Check JKZ solved at least the Microphone Issue- I will check if this also works now with Audio Interface.

Quick info- meanwhile I can confirm,  checked JKZ in Security>Privacy >>Microphone solved Audio  Interface issue as well.