InvalidOperationException: Collection was modified; enumeration operation may not execute.
System.ThrowHelper.ThrowInvalidOperationException (System.ExceptionResource resource) (at <ac823e2bb42b41bda67924a45a0173c3>:0)
System.Collections.Generic.List`1+Enumerator[T].MoveNextRare () (at <ac823e2bb42b41bda67924a45a0173c3>:0)
System.Collections.Generic.List`1+Enumerator[T].MoveNext () (at <ac823e2bb42b41bda67924a45a0173c3>:0)
AutoChess.DataClasses.SynergyData.SynergisticMonstersData..ctor (System.Collections.Generic.List`1[T] fieldUnits) (at Assets/Scripts/DataClasses/SynergyData/SynergisticMonstersData.cs:54)
AutoChess.CoreGameplay.Fight.SynergyController.UpdateUnits () (at Assets/Scripts/CoreGameplay/Fight/SynergyController.cs:33)
AutoChess.CoreGameplay.Fight.FieldController.UpdateSynergies () (at Assets/Scripts/CoreGameplay/Fight/FieldController.cs:286)
ActionBehaviours.BattleFieldBehaviour.MoveFromHandToEmptyTile () (at Assets/Scripts/UIScripts/MoveUnitsControllers/ActionBehaviours/BattleFieldBehaviour.cs:323)
ActionBehaviours.BattleFieldBehaviour.MoveOnField (System.Boolean fromHand) (at Assets/Scripts/UIScripts/MoveUnitsControllers/ActionBehaviours/BattleFieldBehaviour.cs:300)
ActionBehaviours.BattleFieldBehaviour.OnMonsterDragEnd () (at Assets/Scripts/UIScripts/MoveUnitsControllers/ActionBehaviours/BattleFieldBehaviour.cs:260)
ActionBehaviours.BattleFieldBehaviour.OnDragEnd () (at Assets/Scripts/UIScripts/MoveUnitsControllers/ActionBehaviours/BattleFieldBehaviour.cs:457)
ActionBehaviours.BattleFieldBehaviour.ProcessAction (ActionBehaviours.MonsterActionListener+ActionType action, UnityEngine.Vector3 coords, System.Boolean forced) (at Assets/Scripts/UIScripts/MoveUnitsControllers/ActionBehaviours/BattleFieldBehaviour.cs:187)
ActionBehaviours.MonsterActionListener.PrepareAction (ActionBehaviours.MonsterActionListener+ActionType action, System.Boolean recheck, System.Boolean forced) (at Assets/Scripts/UIScripts/MoveUnitsControllers/MonsterActionListener.cs:218)
ActionBehaviours.MonsterActionListener.ChangeState (ActionBehaviours.MonsterActionListener+ListenerState state, System.Boolean forced) (at Assets/Scripts/UIScripts/MoveUnitsControllers/MonsterActionListener.cs:163)
ActionBehaviours.MonsterActionListener.Update () (at Assets/Scripts/UIScripts/MoveUnitsControllers/MonsterActionListener.cs:267)