I repaired my Vw2023 SP1 installation yesterday using the Vw installer, hoping that it would keep the 'shards' at bay – but they came back this afternoon. The installer said it repaired 139 files.   This time the 'shards' are centered around an Interior Elevation Marker, and they even show up in a 2D Top / Plan view. If you zoom in, they disappear, but zoom back out and they reappear. You can even see that the fill in the Interior Elevation Marker arrows flicker in and out.