<!-- --------Before Creating a New Issue----------- * Limit report to a single issue. * Search the issue tracker to verify the issue has not already been reported. * Complete all instructions between `template comment markers <>. * Keep report contents limited to the necessary information required to fix the issue. * When creating an issue against the stable version of KiCad, make sure the latest available stable version is installed as issues may have already been resolved in later stable versions. --> # Description <!-- What is the current behavior and what is the expected behavior? --> <!-- If the issue is visual/graphical, please attach screenshots of the problem. --> <!-- Add the issue details below this line and before the "Steps to reproduce" heading. --> I've lost all of my "Value" fields in my Schematic several times in v10, and I think I've tracked the cause down to a duplicate value field with a different case ("VALUE") being added by a symbol, and then the bulk edit symbol fields dialog seems to replace all of the "Value" field values with "". # Steps to reproduce <!-- If there are multiple steps to reproduce it or it is a visual issue, then providing a screen recording as an attachment to this report is recommended. --> <!-- If this issue is specific to a project, please attach the necessary files to this issue. --> <!-- Add the steps to reproduce using the numbers below --> <!-- Add new step numbers before the "KiCad Version" heading. --> 1. Open a schematic. 2. Tools -> Bulk Edit Symbol Fields. 4. Add a new "Value" field with different case. "VALUE" works. 5. Click "Ok". 6. Exit the Schematic Editor. Save when prompted. 7. Reopen schematic. 8. Tools -> Bulk Edit Symbol Fields. 9. BUG: See that all previous "Value" fields are now blank, and so is the new "VALUE" field. In the attached screencap, instead of adding a new "VALUE" field, one appears to have been added by a symbol. This essentially happened transparently and when I use this dialog to make other changes all my values are deleted. Deleting the new "VALUE" field does not restore the values of the "Value" field. {width=722 height=600} # KiCad Version <!-- Copy version information (from main menu Help->About KiCad ->Copy Version Info) and paste it between the triple backticks below to preserve the formatting. --> ``` Application: KiCad arm64 on arm64 Version: 10.0.0, release build Libraries: wxWidgets 3.2.8 FreeType 2.14.1 HarfBuzz 12.1.0 FontConfig 2.17.1 libcurl/8.7.1 (SecureTransport) LibreSSL/3.3.6 zlib/1.2.12 nghttp2/1.63.0 Platform: macOS Sequoia Version 15.3.1 (Build 24D70), 64 bit, Little endian, wxMac Build Info: Date: Mar 19 2026 18:09:34 wxWidgets: 3.2.8 (wchar_t,wx containers) Boost: 1.89.0 OCC: 7.8.1 Curl: 8.7.1 ngspice: 44.2 Compiler: Clang 16.0.0 with C++ ABI 1002 KICAD_IPC_API=ON KICAD_USE_PCH=OFF ```