I have the same issue! But I only have it since 6.0.7. As long as I used (I guess it was) 6.0.2 that never happened. It mostly happens while lane-recording, especially while doing punch-ins. Is this issue confirmed by Steinberg?
I hope they will…it’s a really annoying thing, especially when a client sits nearby and sees that sometimes the waveform does not appear or does not appear “the right way”…