BUG: Reorderable List sample - errors on drop

[SimonDarksideJ]

Unity UI Extensions Bug Report

Describe the bug

NullReferenceException: Object reference not set to an instance of an object
UnityEngine.UI.Extensions.ReorderableListDebug.ElementDropped (UnityEngine.UI.Extensions.ReorderableList+ReorderableListEventStruct droppedStruct) (at C:/LD/Unity-UI-Extensions/com.unity.uiextensions-github/Runtime/Scripts/Controls/ReorderableList/ReorderableListDebug.cs:28)
UnityEngine.Events.InvokableCall`1[T1].Invoke (T1 args0) (at <25ce29052dfe4e49a635a42f7798806b>:0)
UnityEngine.Events.UnityEvent`1[T0].Invoke (T0 arg0) (at <25ce29052dfe4e49a635a42f7798806b>:0)
UnityEngine.UI.Extensions.ReorderableListElement.OnEndDrag (UnityEngine.EventSystems.PointerEventData eventData) (at C:/LD/Unity-UI-Extensions/com.unity.uiextensions-github/Runtime/Scripts/Controls/ReorderableList/ReorderableListElement.cs:380)
UnityEngine.EventSystems.ExecuteEvents.Execute (UnityEngine.EventSystems.IEndDragHandler handler, UnityEngine.EventSystems.BaseEventData eventData) (at ./Library/PackageCache/com.unity.ugui@23b1a4ff749d/Runtime/UGUI/EventSystem/ExecuteEvents.cs:85)
UnityEngine.EventSystems.ExecuteEvents.Execute[T] (UnityEngine.GameObject target, UnityEngine.EventSystems.BaseEventData eventData, UnityEngine.EventSystems.ExecuteEvents+EventFunction`1[T1] functor) (at ./Library/PackageCache/com.unity.ugui@23b1a4ff749d/Runtime/UGUI/EventSystem/ExecuteEvents.cs:272)
UnityEngine.EventSystems.EventSystem:Update() (at ./Library/PackageCache/com.unity.ugui@23b1a4ff749d/Runtime/UGUI/EventSystem/EventSystem.cs:530)

What is the bet it is TMPro again.