Unable to add a new models in Cursor

When attempting to add a new model to Cursor, it does nothing. No error messages are displayed, and the model is not added

Cursor Version: 0.46.9
VSCode Version: 1.96.2
Date: 2025-03-05T08:14:11.312Z
Electron: 32.2.6
Chromium: 128.0.6613.186
Node.js: 20.18.1
V8: 12.8.374.38-electron.0
OS: macOS Sequoia 15.3.1 (Darwin arm64 24.3.0)

fyi: using openrouter endpoint