This line is where your problems come from:
tickerA = 120

Basically each player has own value for this variable - it should be stored in global.
There are few other local variables that might be problem - they look like constants after short look at the code. Ticker is causing issues for sure ...

miturion wrote:I like those loaders/unloaders for train loading/unloading.

Agreed. Train unloading looks silly, and is generally a pain.

The ore unloader breaks in multiplayer, consistently causing a desync every time it unloads cargo from a train. This occurred on a headless server with two clients.