https://pastebin.com/Kxza2Q9r

As far as I can tell, the problem is caused by built objects related to the mod. Try to destroy/dismantle all mod related objects, like surveillance cameras, then save, and then try to remove the mod again.

I thought I did... I'll take another look.

... Turns out there were two cameras hidden under debris that I missed.... Sorry for wasting your time. Thanks for the assist.

Er.... now I'm getting an error whenever I try and save:

Exception while saving game: System.NullReferenceException: Object reference not set to an instance of an object
at RimWorld.TaleData_Def.ExposeData () [0x00000] in <filename unknown>:0
at Verse.Scribe_Deep.Look[TaleData_Def] (RimWorld.TaleData_Def& target, Boolean saveDestroyedThings, System.String label, System.Object[] ctorArgs) [0x00000] in <filename unknown>:0
at Verse.Scribe_Deep.Look[TaleData_Def] (RimWorld.TaleData_Def& target, System.String label, System.Object[] ctorArgs) [0x00000] in <filename unknown>:0
at RimWorld.Tale_SinglePawnAndDef.ExposeData () [0x00000] in <filename unknown>:0
at Verse.Scribe_Deep.Look[Tale] (RimWorld.Tale& target, Boolean saveDestroyedThings, System.String label, System.Object[] ctorArgs) [0x00000] in <filename unknown>:0
at Verse.Scribe_Collections.Look[Tale] (System.Collections.Generic.List`1& list, Boolean saveDestroyedThings, System.String label, LookMode lookMode, System.Object[] ctorArgs) [0x00000] in <filename unknown>:0
at Verse.Scribe_Collections.Look[Tale] (System.Collections.Generic.List`1& list, System.String label, LookMode lookMode, System.Object[] ctorArgs) [0x00000] in <filename unknown>:0
at RimWorld.TaleManager.ExposeData () [0x00000] in <filename unknown>:0
at Verse.Scribe_Deep.Look[TaleManager] (RimWorld.TaleManager& target, Boolean saveDestroyedThings, System.String label, System.Object[] ctorArgs) [0x00000] in <filename unknown>:0
at Verse.Scribe_Deep.Look[TaleManager] (RimWorld.TaleManager& target, System.String label, System.Object[] ctorArgs) [0x00000] in <filename unknown>:0
at Verse.Game.ExposeSmallComponents () [0x00000] in <filename unknown>:0
at Verse.Game.ExposeData () [0x00000] in <filename unknown>:0
at Verse.Scribe_Deep.Look[Game] (Verse.Game& target, Boolean saveDestroyedThings, System.String label, System.Object[] ctorArgs) [0x00000] in <filename unknown>:0
at Verse.Scribe_Deep.Look[Game] (Verse.Game& target, System.String label, System.Object[] ctorArgs) [0x00000] in <filename unknown>:0
at Verse.GameDataSaveLoader.<SaveGame>m__90E () [0x00000] in <filename unknown>:0
at Verse.SafeSaver.DoSave (System.String fullPath, System.String documentElementName, System.Action saveAction) [0x00000] in <filename unknown>:0
Verse.Log:Error(String)
Verse.GameDataSaveLoader:SaveGame(String)
RimWorld.<DoFileInteraction>c__AnonStorey407:<>m__59C()
Verse.LongEventHandler:UpdateCurrentSynchronousEvent(Boolean&)
Verse.LongEventHandler:LongEventsUpdate(Boolean&)
Verse.Root:Update_Patch1(Object)
Verse.Root_Play:Update()


This si the first time I have seen this error, and have noidea where to start troubleshooting... If you could point me in the right direction though, I would very much appreciate it.

TaleData should be related to data collected by the game while pawns are alive, and that data should then be used to build story notes on graves, sculptures, paints, and so on.

So... it seems that the game recorded something that has been removed, but as far as I know, Real Fog of War doesn't add anything to the tale system... Unless the building of an object is an action that is recorded in the tale system.. in this case building a security camera will bind it to a pawn and removing the mod will break the save (and this should apply to every mod that add new objects to the game)...

If you can share the save (pre and post mod removal) I could try to investigate.

Uhh, I also have about 120 other mods installed... The only reason as to why I'm still going to you for this, is because Yours is the only mod that is being removed. I can still get you a pre-removal save file, but there is no post-removal salve file, as I can't save, lol.

I'm gonna need your email so I can send you a download link. Also, I sent you a friend request to facilitate easier communication.

Issue is resolved, and on the mods main page.