WinSCP - Folder Search Issue for folders starting with "AU"

Hi, Observed the following when using WinSCP - Find Files feature,
Searching files in folders that begins with "AU" returns blank even when files exist.
On trying out wildcard characters also the result was blank.

But when trying with "Au" (Lowercase "u") returns result as expected, all matching file names are displayed.

This happens only with folders that being with "AU"

Please test this scenario and confirm, Thanks.

Regards, Shreedhar

Can you post a screenshot for both "AU" and "Au"?
What is your Windows default locale?