Issue #21552: RRKickOut quest fails to make Railroad NPC's not essential
When attempting to wipe out the Railroad after completing the main quest with them, the quest RRKickOut does not appear to successfully set senior NPC's to be non-essential, making it impossible to kill them all.
The fragment from stage 100 is supposed to set NPC's like Desdemona to be non-essential. I tweaked this fragment slightly: based on a debug.trace I added it seems the script thinks that Desdemona is not essential both before and after it attempts to set her to not essential. My explosive combat shotgun disagrees!
I have attached my modified fragment, papyrus log and a save to illustrate the issue. The save is not 100% clean: if the problem does not have a solution obvious to someone with more experience than me, I can spend the time to create a proper clean save - that might take a few hours given that it requires completing much of the main quest line.