Sweep Chart Broken Interpolation Lines for some Interpolation Styles

[jreesetmi]

I made a similar post believing there was an issue with the line style, but it actually appears to be the interpolation style.

When any of the bottom 3 interpolation styles are selected on a chart, the interpolation lines break and have a dashed appearance.

Using the scroll bar on the front panel causes the chart to redraw and display normally for a moment.

The vertical step interpolation displays fine:

Horizontally centered step appears fine:

Linear has breaks, which appear much worse depending on timing of drawing to the chart and frequency of the signal:

Linear again at different timing:

Horizontal step has breaks. I can see faint lines connecting them while it runs, but they disappear when I screenshot it.

and finally vertically centered steps is similar to the previous: