Window doesn't open when launched from the Dock or Finder

Steps to reproduce

1. Launch MacVim from the Dock or Applications folder
2. New window does not appear.
3. File -> New Window and File -> Clean Window does nothing.

I removed .vimrc, .gvimrc, .viminfo, and all plugins and the issue persists.

If MacVim is launched directly in terminal via /Applications/MacVim.app/Contents/bin/mvim, everything works as expected. Similar issue was raised in a Google Groups discussion.

Expected behaviour

A new window should appear when launching the app.

Version of Vim and architecture

9.1.727, r180, arm64

Environment

Operating system: macOS 15.0

How MacVim was installed

Downloaded from GitHub

Logs and stack traces

No response

Vim configuration where issue is reproducable

No response

Issue has been tested with given configuration

• by running MacVim.app from GUI macOS interface
• by running vim/gvim/etc installed by MacVim
• by running other versions of vim (e.g. /usr/bin/vim)

Issue has been tested with no configuration

• by running mvim --clean (or gvim, supplied by MacVim distribution)
• by running vim --clean (in terminal, supplied by MacVim distribution)
• by running vim --clean (in terminal, other suppliers, e.g. /usr/bin/vim)

Other conditions

• The both Homebrew packages "vim" and "macvim" are installed

首先比较从 Dock 或 Applications 文件夹启动 MacVim 与通过 /Applications/MacVim.app/Contents/bin/mvim 启动的情况，因为 issue 报告了这些入口之间存在不同的行为。在 macOS 15.0 上使用所列出的 MacVim 版本复现窗口缺失行为，然后验证以图形方式启动应用以及通过 File → New Window 启动时都会出现新窗口。