Triggering custom even in other blueprint breaks source blueprint?

Hey! So I’m having a bit of a bizarre issue with a blueprint.
I have a blueprint that triggers an event in a different blueprint. However, as soon as I run this event, the blueprint I run it from breaks, and it no longer updates timelines etc. Any suggestions?

Everything works perfectly until I connect the node to “close doors”. The Door BP runs fine.

Edit: for some reason it worked when I made the target BP not trigger overlap events.