fix: fix cached position for pre-warmed particles

Scripts/UIParticle.cs

@@ -395,7 +395,6 @@ namespace Coffee.UIExtensions
 #if !SERIALIZE_FIELD_MASKABLE
             maskable = m_Maskable;
 #endif
-            _cachedPosition = transform.position;
             activeMeshIndices.Clear();
 
             UIParticleUpdater.Register(this);

Scripts/UIParticleUpdater.cs

@@ -154,6 +154,9 @@ namespace Coffee.UIExtensions
 
             particle.cachedPosition = position;
 
+            if (particle.activeMeshIndices.CountFast() == 0)
+                diff = Vector3.zero;
+
             for (var i = 0; i < particle.particles.Count; i++)
             {
                 Profiler.BeginSample("[UIParticle] Bake Mesh > Push index");