The fix for this has been pushed. The tuning pattern selection area was made stricter to avoid sometimes unexpected selection behavior. Please check whether the issue still persists in the first nightly build that includes commit b156372d

I'm reporting this from v10 RC2, but 9.0.7 is also affected. When selecting some tracks with meanders, I noticed that another meander which was well outside the selection rectangle also got falsely selected. It then reacts to commands line Delete or Copy/Paste. I'm uploading screenshots and test project from 9.0.7, re-saving it in v10 has no effect. The project was originally imported from Eagle, but all differential pairs and meanders were routed from scratch in KiCad 8.0.8.

Steps to reproduce

1. Open PCB from this test project:

   Meanders test project.zip

2. Select area like in the first screenshot. Make sure you use blue selection rectangle.

3. Observe that nearby meander from another track/net also got falsely selected.

KiCad Version

Application: KiCad PCB Editor x64 on x64 Meanders selection bug.png

Version: 10.0.0-rc2-45-gc62b9aad23, release build

Libraries:
	wxWidgets 3.3.2 
	FreeType 2.13.3
	HarfBuzz 12.3.0
	FontConfig 2.17.1

Platform: Windows 10 (build 19045), 64-bit edition, 64 bit, Little endian, wxMSW
OpenGL: ATI Technologies Inc., AMD Radeon RX 7900 XT, 4.6.0 Compatibility Profile Context 25.6.1.250522

	wxWidgets: 3.3.2 (wchar_t,STL containers)
	Boost: 1.90.0
	OCC: 7.9.2
	Curl: 8.18.0
	ngspice: 45.2
	Compiler: Visual C++ 1944 without C++ ABI
	KICAD_IPC_API=ON
	KICAD_USE_PCH=OFF

Locale: 
	Lang: en_GB
	Enc: UTF-8
	Num: 1,234.5
	Encoded кΩ丈: D0BACEA9E4B888 (sys), D0BACEA9E4B888 (utf8)

Damjan (b156372d) at 17 Mar 00:16

I see the description has been changed, new image was posted. I can replicate this:

Still persist in version 10.0 (maybe add 10.0 label?)

Sinc this is known upstream bug, should this one be closed or should stay open for visibility?

Seth Hillbrand (216ad00b) at 16 Mar 23:42

Thank you, When I uninstall and install again the issue was disapered

16 Mar 2026 Pzt 18:37 tarihinde Jeff Young (@jeffyoung) < [email protected]> şunu yazdı:

Seth Hillbrand (2028645d) at 16 Mar 23:27

Version 10 is also affected (so adding the label 10.0 might be appropriate?)

Version: 10.0.0-rc2-955-g47294a0727, release build

Should the KLC S5.1 be fixed by creating derived symbol and assigning the respective footprints (they are only 2, SMD and THT one)?

Thank you! I have not tried the latest, however I had already made an identical change to yours from e25c5a98 and confirm that the crash no longer repros.

Description

Steps to reproduce

1. Open Symbol editor, expand a library
2. Alternatively, add a symbol in the schematic

KiCad Version

Application: kicad-cli x86_64 on x86_64

Version: 10.0.0-rc2-955-g47294a0727, release build

Libraries:
        wxWidgets 3.2.4 GLX
        FreeType 2.13.2
        HarfBuzz 8.3.0
        FontConfig 2.15.0
        libcurl/8.5.0 OpenSSL/3.0.13 zlib/1.3 brotli/1.1.0 zstd/1.5.5 libidn2/2.3.7 libpsl/0.21.2 (+libidn2/2.3.7) libssh/0.10.6/openssl/zlib nghttp2/1.59.0 librtmp/2.3 OpenLDAP/2.6.10

Platform: KDE neon User Edition, 64 bit, Little endian, wxBase, x11, KDE, KDE

Build Info:
        Date: Mar 15 2026 11:39:02
        wxWidgets: 3.2.4 (wchar_t,wx containers) GTK+ 0.0
        Boost: 1.83.0
        OCC: 7.6.3
        Curl: 8.5.0
        ngspice: 42
        Compiler: GCC 13.3.0 with C++ ABI 1018
        KICAD_IPC_API=ON
        KICAD_USE_PCH=OFF

Locale: 
        Lang: en_US
        Enc: UTF-8
        Num: 1.234,5
        Encoded кΩ丈: D0BACEA9E4B888 (sys), D0BACEA9E4B888 (utf8)

Damjan (4d14471e) at 16 Mar 23:06

Seth Hillbrand (4c87872d) at 16 Mar 22:41

... and 3 more commits

Kicad also wants all annotations to end with a number. Do you have any that end with a letter?

Tomasz Wlostowski (b781fc29) at 16 Mar 21:03

... and 1 more commit