Aven crashes on macOS 27 — locale workaround

[Darek Lubomski]

Hi Olly and everyone,

After updating to macOS 27, Aven crashes with “trace trap”, even without
opening a file. This happens in both Terminal.app and kitty.

My setup: Apple M4, Aven 1.4.22 from Homebrew, wxWidgets 3.3.2.

This workaround lets me open the model:

    LC_ALL=C.UTF-8 aven KATASTER.3d

Codex-assisted investigation — separate from my observations

Local tests run with Codex reproduced the crash with pl_PL.UTF-8, while
C.UTF-8 and en_US.UTF-8 started successfully. Crash reports point to
CoreUI/AppKit.

A macOS 27 locale regression is a hypothesis, not a confirmed root cause.
Potentially related: wxWidgets #26822:
https://github.com/wxWidgets/wxWidgets/issues/26822

Is this known, and could an Aven-side workaround help?

Best regards,
Darek
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