I took on one of those MM radiant quests to go to Ten Pines Bluff and talked to a settler about super mutant attacks. I cleared the super mutants out at the location given and then I'm told to return to Ten Pines to talk to the settler. I go there and the settler isn't there. Look at the map and they are in Croup Manor. Fast travel there and they are at the Slog. Every time I fast travel to the new location they have moved somewhere else. I reloaded an older save and checked the status of the settler and they are showing up as unassigned to make sure they aren't provisioners. I can't get close to the settler before they shift somewhere else.
Anyone else gotten this?