> I'm not sure why it's working on your code but in mine it's not, if I change it, they all freeze at the same time when the game starts.
You said something similar in another post and that the rest of your code can not cause a problem. It seems that this is not the case. Please go through your code carefully or post share your project.
Thanks for the advice 
kriand it is probably the case, as I keep building my game even that it is so organized with comments and groups (I'm using the Ctrl+F to find parts of the code faster that way).
Still I can't find the issue.
I hope that I will find it... I'm still looking for it all over, even manually as I'm pretty much have the specific code related to this on that specific event sheet as I posted, nothing else is related to this on the rest of the event sheets from what I see. the issue must be somewhere but I cannot see it yet.