We have noticed that in the TDP3 original some trains are indeed too long to be served at Pico Rivera, so the train lengths were adjusted in the train schedule so that they fit.
For trains supposed to be already on the territory we use a variation of the CTC simulator run with just the trains we need to care of, maneuver them to the place where they are supposed to be at start up according to the original TDP3 data, and finally do an ordinary save of the game status. This status is then added to the release versions of the territory files, so that they can be loaded when you start the simulator, much like when you load the game status that you have saved yourself.
Now, train lengths can change over time, so that is part of the saved data besides of the head and tail position of each train.
Apparently, when the train lengths in the base schedule were changed, the generation of the load data for the start positions - done earlier before this change - wasn't repeated. This would have been necessary to correct the train lengths here - and they were now outdated.
So, obviously we need to re-generate the load data to correct the situation. We'll let you know right here when that is done.