¿Why Print out message in Migo get duplicateg when event 4 in MN22 is selected?

Hello,

I am not able to find out why the print out message get duplicate when I change event 3 to event 4 in MN22.

when I do Good issues in MIGO and the message "ZVAL" is set in event 3 "Send with application own transaction" only one type of message is been trigger in , but if I change event 3 to 4 "Send immediately (when saving the application)" in MN22 all the message get duplicated.

Thanks

Jorge G