Hi,
are you using the global event "TRIGGER ENTER" or the action "Trigger Event"?
-- If you use "TRIGGER ENTER", there is no filtering, EVERY trigger enter call from the system will be forwarded. and you will need to use the action "Get trigger info" and then filter out if you need to perform an action..
-- If you are using "Trigger Enter" action, then you have access to layer and tag filtering. BUT DON'T use the global event "TRIGGER ENTER" as the event to send from that action, because then it's going to bug. create your own global event for this.
Bye,
Jean