Waveform shows up as a flat line

I’m using Windows 10 and the waveform shows up as a flat line. Program seems to work fine but I can’t find a setting to change the way it displays. Does anyone know what the issue might be? Thanks,


Is the waveform from a recording? And is it a low input signal like a guitar DI (on which you’re using plugins)?
I assume on play loops you can hear it looping correctly?

ALK doesn’t show the audio waveform normalised, so if it’s a low level input signal then it may look close to flat when zoomed out.