Player synchronizes as the other player

Vassal Version 3.4.8, 3.4.12 (performs the same in both)
Module - under construction
Logfile - just your standard “synchronization complete”

When I go to play this mod online, the synching player joins the game as the side of the player who made the game. If either of them changes sides, the other changes sides along with him. Any help/suggestions would be greatly appreciated. Thank you.

This is almost certainly a case of both users having identical personal module passwords. To play online in a module that has defined player sides, all players need to have different module passwords. To change one’s personal module password, have the module open, then go to File → Preferences → Personal tab.

Yup. That was it. Thanks for your help!