AccessViolationException in VoskRecognizer

I am getting this as soon as I get to the new VoskRecognizer line...
My C# code is built as x64. My app is just a simple WinForm.
In the form in a button click handler, I call:
`
Vosk.Vosk.SetLogLevel(0);
Model model = new Model("vosk-model-en-us-0.22");
DemoBytes(model);
`
I installed Vosk via NuGet package.
Is there anything else I need to do to make it work?