1. Build train foundry
2. Build station connected to train foundry
3. Create a train with 1 loco and 2 wagons
4. Add station to train schedule
5. Set train to auto
6. Create blueprint with train set to automatic with the station from 2.
7. Add blueprint to train foundry
8. Let train foundry build train
9. Add required stuff for train to train foundry
10. Let train foundry finish building the train
11. Train starts exiting the foundry
12. When the first wagon is over the gate, save the game
13. exit the current game
14. load the saved game

The train is stuck in the gate

fixed
thanks for feedback