Winscp.ini does not exist

Tools/Cleanup/Configuration INI file gives D:\Program Files (x86)\WinSCP\Winscp.ini as location.
This file does not exist
Actually I can't find Winscp.ini in ANY of the common location (program files, User directories). Have you moved the ini data into the registry recently.

So the cleanup is wrong, and it seems it does not cleanup. Probably trying to delete the no longer existant file.

The dialog indeed shows even files that do not exist actually.
WinSCP stores configuration to Windows registry by default.
See https://winscp.net/eng/docs/config