we seem to face a similar problem - and I'm eager to hear about the solution.
We were running a A19.5 dedicated server enjoying @KhaineGB awesome darkness falls mod.
But after updating the server to A19.6 and getting the latest A19.6 darkness falls mod version from gitlab the savegame seem's to be broken.
Starting a new world from scratch works - but in our savegame we just have painfully gathered enough hazemat gear for short trips into the radiated zone - so we would very much prefer to keep it
Loading the savegame results in this log errror:
ArgumentException: An item with the same key has already been added. Key: -2401, 84, -4108
at System.Collections.Generic.Dictionary`2[TKey,TValue].TryInsert (TKey key, TValue value, System.Collections.Generic.InsertionBehavior behavior) [0x000c1]>
at System.Collections.Generic.Dictionary`2[TKey,TValue].Add (TKey key, TValue value) [0x00000] in <567df3e0919241ba98db88bec4c6696f>:0
at PowerManager.AddPowerNode (PowerItem node, PowerItem parent) [0x00046] in <d15958ecbbfc46c3933d31eb2910c084>:0
at PowerManager.Read (System.IO.BinaryReader br) [0x0003b] in <d15958ecbbfc46c3933d31eb2910c084>:0
at PowerManager.LoadPowerManager () [0x00099] in <d15958ecbbfc46c3933d31eb2910c084>:0
at GameManager+<StartAsServer>d__135.MoveNext () [0x0023e] in <d15958ecbbfc46c3933d31eb2910c084>:0
at UnityEngine.SetupCoroutine.InvokeMoveNext (System.Collections.IEnumerator enumerator, System.IntPtr returnValueAddress) [0x00027] in <1580092fcc9a4cc196>
(Filename: <567df3e0919241ba98db88bec4c6696f> Line: 0)
Is there still hope or are we doomed and the undeads beat us in the most unfair and unexpected way?