render throws a RuntimeError: memory access out of bounds

[vinzentt]

Hi,

I'm trying to use the render function to export the generated audio. Unfortunately I receive a out of bounds error. I have also trouble retrieving the totalTicks of the player, I only get 0.

So here is my code (initialization works since I can play notes with midiNoteOn function):

await this.synth.addSMFDataToPlayer(this.props.midiBuffer);
const audioBuffer = new AudioBuffer({
      numberOfChannels: 2,
      length: 44100 * (totalTicks+1),
      sampleRate: 44100,
    });
this.synth.render(audioBuffer);

and it raises this error

Uncaught (in promise) RuntimeError: memory access out of bounds
    at fluid_synth_write_float_channels_LOCAL (001354da:0x1b1d7)
    at fluid_synth_write_float (001354da:0x1b01d)
    at Synthesizer.renderRaw (Synthesizer.js?3001:804:1)
    at Synthesizer.render (Synthesizer.js?3001:350:1)

Any help would be much appreciated.
Thanks in advance.

Best regards,
Vincent