You need to store your mods data variables in the global table so they're saved/loaded with the game.

Right now because they're stored as local variables they get reset every time a new player joins the game or every time the game is saved, exited, and loaded.

This results in desyncs in MP and breaks the replay in single player.

I hope this version does something like that? But in the future please report bugs in the forum thread. Mod portal here doesn't send email notification for messages, i may check these once a month or something.