Can’t access external sound device or blackhole from SC

Questions
1

I am currently unable to get any sound out form SC (superCollider 3.14.0-rc1) macOS Big Sur. to an external audiodevice.
server meter shows a signal in the output channel [0,1], but i’m not able to receive any audio in ableton or logic through blackhole virtual audiodriver or on my AnalogRytm used as a USB soundcard.
btw: logic to ableton works with blackhole

i’ve selected the outputs like this:

Server.default.options.outDevice_(“BlackHole 2ch”);
Server.default.options.inDevice_(“BlackHole 2ch”);

the devices are shown in the at post window:

Number of Devices: 4
0 : “Built-in Microph”
1 : “Built-in Output”
2 : “BlackHole 16ch”
3 : “BlackHole 2ch”

“BlackHole 2ch” Input Device
Streams: 1
0 channels 2

“BlackHole 2ch” Output Device
Streams: 1
0 channels 2

btw i used in my synthdef

Out.ar([0,1],sig);

are there any solutions for this issue? or what whats wrong in my code?

2

Could the issue be the same as in this post?

3

no, i don’t think so, the internal mic and audio out are working fine

4

Did you check if the sample rate for Blackhole in the Audio MIDI setup app matches that of SC?

5

sample rate is 48k on all devices and SC, in eariler times some years ago, i used jack but jack is not working even the lastest realese on my system,
but got it working, the soundsource app overwrites the audio out of AudioMIDI setup
thx