While I understand the need in this scenario, the inability to turn this behavior off makes WinSCP almost unusable for me.
I am using a socks proxy that is only reachable inside a VPN to prevent accidental connections while I am not connected to it. This proxy does not require any authentication credentials and in combination with many background connections this leads to a constant spam of authentication prompts I always have to confirm without entering anything. Each new background connection WinSCP establishes triggers another prompt.
I am constantly juggling 3–6 different servers all of which use this socks proxy setting and I frequently upload or download lots of small files which is a lot faster by using multiple background connections.
Maybe I am just blind but I couldn't find a way of turning this new behavior off.
Please provide a way somewhere to give the user the option to choose.