Save password disabled, despite master password set

--> How can I save a session and store the password with it?
I have set a master password in Options > Preferences > Security.
When I do Session > Save Session, the checkbox "Save password (protected by master password)" is disabled. Am I missing something?

It is disabled, when you have not specified any password on the Login dialog.

I do following
1. startup WinSCP
2. select a Stored Session
3. Click Login button - a screen opens with header "Password", message "Prompring for credentials..."
4. Type in the password on the Password field
5. click OK button - then the server connection establishes well shoing client and server folders.
Then I continue as previously descibed:
6. I go in menu Session > Save Session - the Save Session As... screen opens
and the checkbox "Save password (protected by master password)" is disabled
-- Did I miss the login dialog?
-- Apparently it does not work if you Save As a previously stored session. I don't see a reason why we should not be able to do it...
-- When I create a new session and then save as, then the checkbox is enabled...

martin wrote:

It is disabled, when you have not specified any password on the Login dialog.

You must enter password there if you want it to be saved:
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