# Bug: ground planes in V2

**URL:** <https://librepcb.discourse.group/t/bug-ground-planes-in-v2/996>\
**Category:** Help\
**Created:** [January 31, 2026, 8:38pm UTC](https://librepcb.discourse.group/t/bug-ground-planes-in-v2/996 "2026-01-31T20:38:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![sasmus](https://avatars.discourse-cdn.com/v4/letter/s/d26b3c/32.png) [@sasmus](https://librepcb.discourse.group/u/sasmus)\
**Post date:** [January 31, 2026, 8:38pm UTC](https://librepcb.discourse.group/t/bug-ground-planes-in-v2/996/1 "2026-01-31T20:38:45Z")

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there is probably a (minor) bug in V2:

see this simple test-board (connection between J1 and J2 not drawn for illustration):

 ![Bildschirmfoto 2026-01-31 um 21.31.08](https://global.discourse-cdn.com/free1/uploads/librepcb1/original/1X/f470820c81a7dfee5f0e6afa411002e83da36a72.png)

creating a ground plane with thermal relief leads to this (no plane created at all):

 ![Bildschirmfoto 2026-01-31 um 21.32.26](https://global.discourse-cdn.com/free1/uploads/librepcb1/original/1X/17065fa9a83b3e2b83430748ed737ab3d11fb73b.png)

a manual overwriting of the thermal spoke size (even the same size as predefined, here 0,3 mm) does the trick:

 ![Bildschirmfoto 2026-01-31 um 21.34.08](https://global.discourse-cdn.com/free1/uploads/librepcb1/original/1X/63ce115fd83bd68847f0f4b23c4486df30f3d86a.png)

 ![Bildschirmfoto 2026-01-31 um 21.35.19](https://global.discourse-cdn.com/free1/uploads/librepcb1/original/1X/a0c22948784f394fd65f08f9d5e49c1b01b3ee71.png)

It seems to me that the predefined “0,3mm” are not taken into account and assumed =0.

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**Author:** ![ubruhin](https://avatars.discourse-cdn.com/v4/letter/u/c89c15/32.png) [@ubruhin](https://librepcb.discourse.group/u/ubruhin)\
**Post date:** [February 2, 2026, 7:02pm UTC](https://librepcb.discourse.group/t/bug-ground-planes-in-v2/996/2 "2026-02-02T19:02:35Z")

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Thanks for reporting @sasmus!

I can reproduce it. The problem is that for new planes, the minimum width is now set to the default trace width (which is initially 0.5mm), but the spoke width is set to 0.3mm, which makes no sense. As soon as the spoke width is set to \>= minimum width, the problem is fixed.

That is really bad, I will fix that in the next release.