F2 Setup holding UP arrow to loop → crash: unordered_map::at: key not found (macOS 1.4.6)

[noteare666]

Steps to reproduce

1. Install btop 1.4.6 on macOS
2. Execute btop in terminal
3. Press F2 to open the Setup menu
4. Hold the UP arrow key continuously after scrolling to the top of the list (trigger loop scrolling)
5. btop crashes immediately

Error message

ERROR: Exception in main loop -> unordered_map::at: key not found

Environment

• btop version: 1.4.6
• Compiled with: clang++ (17.0.0)
• OS: macOS
• Shell: zsh

Note

This issue is not identical to #1531.
Issue #1531 happens on Arch Linux and is related to General Settings configuration.
This is a new index out-of-bounds bug caused by infinite upward scrolling in the F2 Setup menu.

[yinghao-w]

Could you elaborate on why this is different from #1531? The issue there isn't due to anything platform specific.