single-instance does not work @ Win11 2024.H2

[changshunxu520]

single-instance does not work @ Win11 2024.H2

It has no output, and it seems like it's not working. However, it works fine on another Windows 10 computer.

[FabianLars]

can you also show us the output of the tauri info command please?

for what its worth, it still seems to work for me and others afaik

[StrongTheDev]

I'm getting an error too. Windows 11, i have not tested on other systems yet.

tauri info:

cargo tauri info     

[✔] Environment
    - OS: Windows 10.0.26100 x86_64 (X64)
    ✔ WebView2: 139.0.3405.102
    ✔ MSVC: Visual Studio Community 2022
    ✔ rustc: 1.91.0-nightly (8e62bfd31 2025-08-12)
    ✔ cargo: 1.91.0-nightly (840b83a10 2025-07-30)
    ✔ rustup: 1.28.1 (f9edccde0 2025-03-05)
    ✔ Rust toolchain: nightly-x86_64-pc-windows-msvc (overridden by environment variable RUSTUP_TOOLCHAIN)
    - node: 24.4.0
    - pnpm: 10.9.0
    - yarn: 1.22.22
    - npm: 11.4.2

[-] Packages
    - tauri 🦀: 2.7.0
    - tauri-build 🦀: 2.3.1
    - wry 🦀: 0.52.1, (outdated, latest: 0.53.1)
    - tao 🦀: 0.34.0, (outdated, latest: 0.34.1)
    - tauri-cli 🦀: 2.7.1

[-] Plugins
    - tauri-plugin-log 🦀: 2.6.0
    - tauri-plugin-dialog 🦀: 2.3.2
    - tauri-plugin-single-instance 🦀: 2.2.0, (outdated, latest: 2.3.2)
    - tauri-plugin-fs 🦀: 2.4.1

[-] App
    - build-type: bundle
    - CSP: unset
    - frontendDist: ../dist
    - devUrl: http://localhost:5173/

the error:

thread 'main' (5688) panicked at C:\Users\adhue\.cargo\registry\src\index.crates.io-1949cf8c6b5b557f\tauri-plugin-single-instance-2.2.0\src\platform_impl\windows.rs:121:34:
null pointer dereference occurred
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace       
thread caused non-unwinding panic. aborting.
error: process didn't exit successfully: `C:\Users\adhue\~\.cargo\builds\debug\excalidraw.exe` (exit code: 0xc0000409, STATUS_STACK_BUFFER_OVERRUN)

And similar to the previous commenter, the IDE does not register any errors.

[StrongTheDev]

update: when I manually set the version to 2.3.2 (for single instance plugin), it built without errors.