BUG: Line and Stacked Column Chart Border Not Rendering on Bottom Segment

I'm using the default line and stacked column chart (and also tested with 100% stacked column chart) in Power BI Desktop. I enabled borders, and they render correctly for all segments except the bottom one.

Here’s what I’ve tried with no success:

• Verified that the segment has a distinct color, non-zero values, and is not the only segment in the bar.
• Tried different border colors, thicknesses, and turned off transparency.
• Filtered the chart to show only that segment but still no border.
• Switched to stacked column and combo chart but still no border.
• Confirmed that the segment is a regular category, not a measure or calculated column.
• Restarted Power BI, duplicated the page and tested in a new visual but still no border.

This appears to be a rendering bug where Power BI does not draw borders on the bottom-most segment of a stacked chart, even when all conditions are met.