Index: binaries/data/mods/public/simulation/components/Formation.js
===================================================================
--- binaries/data/mods/public/simulation/components/Formation.js
+++ binaries/data/mods/public/simulation/components/Formation.js
@@ -378,6 +378,10 @@
 	}
 
 	this.ComputeMotionParameters();
+
+	if (!this.rearrange)
+		return;
+
 	this.MoveMembersIntoFormation(true, true);
 };
 
@@ -917,26 +921,18 @@
 
 Formation.prototype.OnGlobalEntityRenamed = function(msg)
 {
-	if (this.members.indexOf(msg.entity) != -1)
-	{
-		this.offsets = undefined;
-		var cmpNewUnitAI = Engine.QueryInterface(msg.newentity, IID_UnitAI);
-		if (cmpNewUnitAI)
-		{
-			this.members[this.members.indexOf(msg.entity)] = msg.newentity;
-			this.memberPositions[msg.newentity] = this.memberPositions[msg.entity];
-		}
-
-		var cmpOldUnitAI = Engine.QueryInterface(msg.entity, IID_UnitAI);
-		cmpOldUnitAI.SetFormationController(INVALID_ENTITY);
-
-		if (cmpNewUnitAI)
-			cmpNewUnitAI.SetFormationController(this.entity);
+	if (this.members.indexOf(msg.entity) == -1)
+		return;
 
-		// Because the renamed entity might have different characteristics,
-		// (e.g. packed vs. unpacked siege), we need to recompute motion parameters
-		this.ComputeMotionParameters();
-	}
+	// Save rearranging to temporarily set it to false.
+	let temp = this.rearrange;
+	this.rearrange = false;
+
+	// First add the new member to prevent disbanding the formation when
+	// on the member disband limit.
+	this.AddMembers([msg.newentity]);
+	this.RemoveMembers([msg.entity]);
+	this.rearrange = temp;
 };
 
 Formation.prototype.RegisterTwinFormation = function(entity)