Why the toolbar can't show the tooltip and show weird unicode-char in console?

1.Why can’t the toolbar show the tooltip ?
2. Why does the get_tooltip show weird unicode-char in console?

Ah Windows, we do love encoding weirdness

Gtk always uses utf8 - is possible your console isn’t expecting that? It looks like you’ve got some warnings - Can we see them please?

Thank you for your relpy!
Here is the warning and the locale ENV.

That is certainly an interesting environment, Is suspect the issue here is a mismatch between Microsoft’s 1252 encoding and UTF8