Chiming in that I'm also getting this bug. Playing on Survival with mods, including Sim Settlements, and Scrap Everything--although I'm puzzled if this is the old cell reset bug since that was supposedly fixed. I can confirm from the console that iHoursToRespawnCell and iHoursToRespawnCellCleared are at their normal values. Editing those settings doesn't seem to have an effect. I can instantly reproduce it: 1. Go into the Corvega plant after clearing all the raiders on the outside. 2. type pcb in the console to purge the cell buffer (or clear the whole plant taking long enough that the cell is probably removed from the cell buffer) 3. Go outside and all the raiders have respawned