I downloaded the new version 2.2.4 and try with the downloaded A_FGN_Réseau_Z.tci layout. Immediatly after the start, when train-4 step to the bottom left section and the train-3 (after a loop) reached to the signal labeled 16 (which was red), I set this signal to green. The train got going across the switch, and the train-4 and train-3 in facing each other run across each other.

Is this the problem of the program or layout?

(The previous picture was too big)