Multiplayer custom senario with triggers keeps chrashing


i’m new to the editor (and also this forum)

now i’m trying to make a map for four persons.
the senario can find in the wetransfer link active til 20/04/2020

the first trigger i was trying is placing an object with looping.
in this case an cow at the town center.

the second trigger for each player is placing a cobra car when they reach impirial age.

we can play this game in single mode but when trying it with 3 to 4 persons most of the time only one player gets in.
can some one tell me what i’m doing wrong. i’ve tried to search what it could be like keeping the colors like it was in the senario but this all didn’t work.

Thx in advance