How to play with someone online?

Hello,

Could someone explain to me how to play with an opponent please?

I created a room, the other player joined after synchronizing.

When I moved my counter, he could see in what hexes I was moving. He couldn t see my counters on the map though?

Am a bit confused…

As long as you are both using the same version of Vassal and the mod, and everyone is synched, anything a person does should appear to all the others …unless a game piece is intended to be invisible to others.

Could this be the case?