2D spectrogram doesn't updates while Friture is processing data

[S0und]

I'm on Windows 10 (1903) using Stereo Mix as a source.

FFT Spectrum works fine, but nothing gets drawn in the 2D spectrogram widget, until i actually stop the processing. Then the spectrogram shows up, and it's looks correct to me. So the processing is working, but doesn't gets drawn while the audio processing is in progress.

https://www.youtube.com/watch?v=8VoSeNlGVEk