EntityEvent fixes:

- Clients wait for midround syncing to finish before applying the remote state to connection panels and inventories (because the wires connected to the connection panel or items in the inventory may not exist before the EntitySpawner events have been received).
- Server writes 0 as the projectile ID if the projectile doesn't exist anymore when a Turret event is sent.
- More info in networkevent error messages.

Barotrauma/BarotraumaClient/Source/Items/Components/ItemComponent.cs

@@ -224,21 +224,27 @@ namespace Barotrauma.Items.Components
         }
 
         //Starts a coroutine that will read the correct state of the component from the NetBuffer when correctionTimer reaches zero.
-        protected void StartDelayedCorrection(ServerNetObject type, NetBuffer buffer, float sendingTime)
+        protected void StartDelayedCorrection(ServerNetObject type, NetBuffer buffer, float sendingTime, bool waitForMidRoundSync = false)
         {
             if (delayedCorrectionCoroutine != null) CoroutineManager.StopCoroutines(delayedCorrectionCoroutine);
 
-            delayedCorrectionCoroutine = CoroutineManager.StartCoroutine(DoDelayedCorrection(type, buffer, sendingTime));
+            delayedCorrectionCoroutine = CoroutineManager.StartCoroutine(DoDelayedCorrection(type, buffer, sendingTime, waitForMidRoundSync));
         }
 
-        private IEnumerable<object> DoDelayedCorrection(ServerNetObject type, NetBuffer buffer, float sendingTime)
+        private IEnumerable<object> DoDelayedCorrection(ServerNetObject type, NetBuffer buffer, float sendingTime, bool waitForMidRoundSync)
         {
-            while (correctionTimer > 0.0f)
+            while (GameMain.Client != null && 
+                (correctionTimer > 0.0f || (waitForMidRoundSync && GameMain.Client.MidRoundSyncing)))
             {
                 correctionTimer -= CoroutineManager.DeltaTime;
                 yield return CoroutineStatus.Running;
             }
 
+            if (item.Removed || GameMain.Client == null)
+            {
+                yield return CoroutineStatus.Success;
+            }
+
             ((IServerSerializable)this).ClientRead(type, buffer, sendingTime);
 
             correctionTimer = 0.0f;