Do you mean that if you single-click on a site folder on Login dialog, WinSCP starts connecting straight away? I cannot reproduce this.
I probably figured out some detail when the problem will occur:
- Use a master password
- Create a folder in login view
- Create connection entries (i.e. 5) inside this folder.
- add a stored password for some (i.e. 2) of the accounts - protected by the master password
Now, by just single-clicking (or searching) the folder containing accounts with stored passwords WinSCP does now ask for the master-password, even if no account really connects.
Even with a click on cancel the master-password query is repeated in the number of accounts with stored passwords.
Master password queried only if protected account is dbl-clicked/connecting or edited...