How to clear cached host key

I am running WinSCP version: 5.19.1 (Build 11552) and wish to clear the cached host key.

I follow the instructions described in: https://winscp.net/eng/docs/ui_cleanup#caches
but I do not get the option "Caches"; the 3 option displayed are:

Cleanup application data
Data
[ ] General configuration
[ ] Configuration INI file
[ ] Random seed file

So how do I do it?
Thanks.

It seems that you are using INI file for configuration, not the default Registry.
Check https://winscp.net/eng/docs/ui_pref_storage

As the documentations says, the "Caches" cleanup is available for Registry only.
With INI file, you can remove the SshHostKeys section manually from the INI file.

Thanks very much – I didn't think to look in the .ini file.