As far as I know, there is NO guarantee of ordering of events when they run at the same time. There is no guarantee on the documentation, at least. So in this case you cannot guarantee that whatever you are trying to do will work - or if you get it working, you have no guarantee that it will work on the next version of AnyLogic.

Your description seems to be a bit convoluted; it would be more useful if we could understand a bit more what and why you are trying to do. Events on the same time should in theory be indepedent. There is probably a way of modeling that will achieve the desired behavior without requiring this kind of hackish way, but we do not have enough information to see if there would be another way to model this.