Hi Sara - Would you have an update about this issue? I am encountering the same problem as Stefano, and would like to know the plan for the fix.
I have the same problem in tableau server 10.4 before,and resolved after the tableau server upgrade to 10.5.1
I have not been able to catch any events (tried TAB_SWITCH/STORY_POINT_SWITCH) from a viz having a story. Is there a different way to add eventlisteners to a viz with story?