Packaged level actors spawn in different location

I have a type of blueprint “Platform”, that moves from “start location” to a set “end location”.
in the editor they are in their correct positions - and move back n forth between the start and end locations

But when i packaged the level all of the Platforms are suddenly at the same location (near the playerstart) but all move to their correct end locations (relative to their start)

Has anyone else had this?