when your end overlap occus - you are closing the gate node. this means the tick (connected to enter) will never go through that node again
I would suggest using a timeline instead the hard node setup, you can play these forward and backward so ideal for a door. or you can set a variable shouldClose (bool) depending on if youre leaving or entering and after setting the variable call the setactor rotation but make your rinterpTo Target a “select on bool” from your shouldClose bool (if true get the 0 rotation, if false the 90 degree open rotation for example)