Hi
I was able to reproduce crash in a packaged game, and it appears to have something to do with Get World Location on a scene component from an Actor from persistent level being referenced in Level Blueprint. As I mentioned above, using Actor Location as Destination Location on Teleport node should work instead, but I have entered a bug report for crash as UE-16444. I’ll post here when I see any update on it.
I’m guessing that if you have multiple Triggers that were duplicated, that may be causing reference problem with only one working properly. Try replacing any duplicated Triggers or TargetPoint BPs in level, and make sure each has its own OnActorBeginOverlap in Level Blueprint. If you’re still having trouble with that, please post an image of entire Level Blueprint (or at least all of Triggers).
Hope that helps!