Win11 & Supernova?

[ingo]

Assuming it should work, is it something I do wrong? On starting the server I get:

Booting server 'localhost' on address 127.0.0.1:57110.
Supernova booting
Server 'localhost' exited with exit code -1073741676.

Win11, SuperCollider 3.12.2., Behringer UMC404HD

A search led me to:

List of exit codes?

Is there a list of exit codes somewhere with their corresponding meanings? I am trying to boot supernova on Windows and getting exit code -1073741676, and I don’t know what this means.

codeblocks - C++ status -1073741676 - Stack Overflow (division by zero)
What's with this negative exit code - Codeforces (wrong index in array)

The startup file:

Server.local.options.numOutputBusChannels = 4;
Server.local.options.numInputBusChannels = 4;
Server.internal.options.numOutputBusChannels = 4;
Server.internal.options.numInputBusChannels = 4;

Server.local.options.device = "ASIO : UMC ASIO Driver";

Server.local.options.hardwareBufferSize = 2048;
Server.local.options.numWireBufs = 128;

Server.local.options.blockSize = 128; //512;
Server.internal.options.blockSize = 128;  //512;

Server.local.options.sampleRate = 44100;
Server.internal.options.sampleRate = 44100;

Server.supernova;
Server.local.boot;