PlayStation Arosaline Red Light

Arosaline R1415: Unable to finish timetable due to stuck train. The AI train is stuck at Arosa, causing a red signal that has stopped me at Litziruti station. On PS4 Standard. This is the ninth job in the journey.

 

Just now I faced it when I was at Litziruti station. The train from Arosa was not leaving. I was waiting for the train departing Arosa to pass though but 20 minutes had passed and all due to the red light it didn't come and the train I was in didn't move. What time was it when you were stuck at Litziruti station? I was stuck at 17:50 Train Sim World 2 time. I think this DLC needs to be properly checked. I really need help in how to fix this issue. I have this DLC for quite long and with other hours I have not faced this signal confusion.

So the bottom question, was the DLC made this way with signal confusion at certain times or it is just a defect upon downloading that some of the AI systems are not processed?