With the latest changes on waveform drawing (not in v1.5)
From @andersvi
all well first time the editor is opened - zooming, resizing etc. works
great.
Next time, the original waveforms are there, but there's one single
waveform (one channel?) added in the middle of the editor-view, seem to
be every second vertical drawing line or something is not draw
However, if zooming in slightly, this strange one disappears, only to
reappear if zooming out to full view again.
With the latest changes on waveform drawing (not in v1.5)
From @andersvi