So apparently Victoria 3 uses other format for mod info than their other games which can break saves, so if you can't load a save with one of the earlier version of the mod, you have to change file in Steam\steamapps\workshop\content\529340\2883828923\.metadata to look like this:
{
"name" : "Expeditions Fix",
"id" : "",
"version" : "",
"supported_game_version" : "",
"short_description" : "",
"tags" : [],
"relationships" : [],
"game_custom_data" : {
"multiplayer_synchronized" : true
}
}

After you finish campaign change it back to:
{
"name" : "Expeditions Fixed",
"id" : "2883828923",
"version" : "",
"supported_game_version" : "",
"short_description" : "",
"tags" : [],
"relationships" : [],
"game_custom_data" : {
"multiplayer_synchronized" : true
}
}