[BUGFIX] Fixed DOTween creating a new instance during ApplicationQuit if calling DOTween.Kill during Destroy (bug introduced in v1.2.270)

UnityTests.Unity5/Assets/Demigiant/DemiLib/Core/Editor/Imgs/whiteSquare.png.meta

@@ -1,6 +1,6 @@
 fileFormatVersion: 2
 guid: d3e15b806a8368742ba6f10e794d7b76
-timeCreated: 1568972667
+timeCreated: 1569668746
 licenseType: Pro
 TextureImporter:
   fileIDToRecycleName: {}

UnityTests.Unity5/Assets/_Tests/TempTests.cs

@@ -12,13 +12,13 @@ using UnityEngine.UI;
 public class TempTests : BrainBase
 {
     public Transform target;
-    public float y = 1;
-    public AnimationCurve ease;
+    Tween t;
 
     IEnumerator Start()
     {
-        yield return new WaitForSeconds(0.8f);
-
-        target.DOMoveY(y, 2).SetEase(ease);
+        target.DOBlendablePunchRotation(new Vector3(120, 120, 120), 1);
+        yield return new WaitForSeconds(0.3f);
+        Debug.Log(target.eulerAngles);
+        target.DOBlendablePunchRotation(new Vector3(200, 200, 200), 1);
     }
 }

_DOTween.Assembly/DOTween/Core/Debugger.cs

@@ -16,7 +16,7 @@ namespace DG.Tweening.Core
     {
         // 0: errors only - 1: default - 2: verbose
         public static int logPriority { get { if (!DOTween.initialized) DOTween.Init(); return _logPriority; } }
-        public static int _logPriority;
+        static int _logPriority;
 
         const string _LogPrefix = "<color=#0099bc><b>DOTWEEN ► </b></color>";
 

_DOTween.Assembly/DOTween/DOTween.cs

@@ -34,7 +34,7 @@ namespace DG.Tweening
     public class DOTween
     {
         /// <summary>DOTween's version</summary>
-        public static readonly string Version = "1.2.280"; // Last version before modules: 1.1.755
+        public static readonly string Version = "1.2.281"; // Last version before modules: 1.1.755
 
         ///////////////////////////////////////////////
         // Options ////////////////////////////////////

_DOTween.Assembly/DOTween/TweenExtensions.cs

@@ -111,6 +111,8 @@ namespace DG.Tweening
         /// <param name="complete">If TRUE completes the tween before killing it</param>
         public static void Kill(this Tween t, bool complete = false)
         {
+            if (!DOTween.initialized) return; // Called during application quit, ignore
+
             if (t == null) {
                 if (Debugger.logPriority > 1) Debugger.LogNullTween(t); return;
             } else if (!t.active) {