i’ve been noticing a bug where track scopes (the boxes that show the waveforms at the top of the screen) are not showing any output for some tracks (i.e. flat lined, although the track is making sound, and the other volume meters - e.g. in the mixer view - are moving).
after some experimentation is seems to be happening when i record a new sample (using recording panel in sampler view), then use that new instrument in a track.
steps to recreate
start new song
go to sampler view, press record button, record something
use this new sample on a track
look at track scope not moving (although sound is working, and all the other meters are visualizing the sound)
here is a link to a renoise file that exhibits this behaviour:
I’m on the latest version 3.0.1 on OSX Mavericks