Blynk.begin doesn't change port

[jtauscher]

When I change port number e.g. in

Blynk.begin(auth, ssid, pass, IPAddress(192,168,0,178), 8081);

it always tries to connect to 8080. It doesnt reach local server when I change port number on server to 8081 - if change server port to 8080 it connects again even I put in 8081 in Blynk.begin(..)