Length matching problem in tracks

Layout
1

Hi There,

I am working on a layout for an 8-layer PCB that contains several LVDS and RF signals. I’ve encountered an issue where KiCad seems to be calculating track lengths incorrectly.

I am adding a screenshot of the problem… In the first track, the calculated length is shown as 80mm, while the second track shows 153mm. This is strange because track 1 is visibly longer than track 2. When I deleted track 2

and reconnected it, KiCad then displayed the correct length.

I have lost trust in the measurements and need to do length matching. Seems like Kicad put 2 wires on top of each other. Is there a way to resolve this issue?

operating system : macos 14.7.1
kicad version:8.0.7
regards
Osman

Screenshot 2025-03-08 at 23.34.59
Screenshot 2025-03-08 at 23.34.591746×1276 329 KB

2

If you’ve got a board that is showing this issue, or can re-create it, please file a bug report on GitLab (you can click the ‘Report Bug’ button in the About dialog to start this off). We need to figure out if this is an issue in length calculations, or an issue in routing leaving multiple overlapping segments.

Do you see the same issue in v9? v8 is no longer supported, and there have been some router improvements which could fix co-linear tracks (if indeed that’s the issue here).

3

Thanks for the reply. I tried the latest version same issue. Opened the issue on gitlab