How are Trains tracked exactly? I have a bug where I got 21 Trains but ST is tracking 38 Trains. On some Lines, if I activate a train, it gets counted twice. I made a list with train name, cargo config and line name but I see no pattern when it's counting correctly or wrong.
I play with version 0.14.20 and on my own multiplayer server with 4 friends.
My Trains are about half L-C-L and half L-CC-L.
[edit]
ST Version is 1.1.6

Sorry for the late reply, i guess the notification hack/script isn't working reliably.

Tracking trains is a bit of a mess, since there are no events available to when a train changes (loco/wagons get added or removed, de-/coupled etc). It should still work apart from the wrong numbers being displayed.
If you could upload the save/get me the IP from the server i can take a look at it. If you want to message me privately: https://forums.factorio.com/memberlist.php?mode=viewprofile&u=1224 or Choumiko on Steam