diff --git a/HellionChat/AutoTellTabsService.cs b/HellionChat/AutoTellTabsService.cs
index 830ddbb..ae1bb20 100644
--- a/HellionChat/AutoTellTabsService.cs
+++ b/HellionChat/AutoTellTabsService.cs
@@ -218,7 +218,7 @@ internal sealed class AutoTellTabsService : IDisposable
         return null;
     }
 
-    private static Tab? FindTempTab(string name, uint world)
+    internal static Tab? FindTempTab(string name, uint world)
     {
         var byTarget = Plugin.Config.Tabs.FirstOrDefault(t =>
             t.IsTempTab
@@ -256,21 +256,20 @@ internal sealed class AutoTellTabsService : IDisposable
             return;
         }
 
-        // Pop-out-window cleanup is offline while the channel-popout pool
-        // is rebuilt — Tab.PopOut still flips on/off, the visible window
-        // disappears once the new pool comes online.
-
         var dropped = victim.Tab;
         Plugin.Config.Tabs.RemoveAt(victim.Index);
 
-        // Re-anchor the UI selection if it pointed at the dropped tab. This runs on
-        // the PendingMessage worker thread and the repair mutates the re-seeded
-        // tab's channel via OnTabActivated, so marshal it onto the framework thread
-        // to serialize with Draw (reference_dalamud_framework_thread) — otherwise a
-        // half-applied strip could race the input bar's send-routing read.
+        // Re-anchor the UI selection if it pointed at the dropped tab, and close any
+        // pop-out window the dropped tab owned. Both run on the PendingMessage worker
+        // thread and touch window state the Draw path reads (OnTabActivated re-seed +
+        // the pool's Unbind), so marshal onto the framework thread to serialize with
+        // Draw (reference_dalamud_framework_thread). TryClose is idempotent: a tab that
+        // was never popped is a silent no-op.
         Plugin.Framework.RunOnFrameworkThread(() =>
-            _plugin.MainWindow?.ResetActiveTabIfRemoved(dropped)
-        );
+        {
+            _plugin.ChannelPopoutPool.TryClose(dropped.Identifier);
+            _plugin.MainWindow?.ResetActiveTabIfRemoved(dropped);
+        });
     }
 
     private void SpawnTempTab((string Name, uint World) partner, Message currentMessage)
@@ -282,13 +281,28 @@ internal sealed class AutoTellTabsService : IDisposable
 
         tab.AddMessage(currentMessage, unread: true);
 
-        // Open as pop-out if configured (set before Tabs.Add for next render-tick)
+        // Open as pop-out if configured (flag set before Tabs.Add for the next render-tick).
         if (Plugin.Config.AutoTellTabsOpenAsPopout)
         {
             tab.PopOut = true;
         }
 
         Plugin.Config.Tabs.Add(tab);
+
+        // Actually open the pop-out window for the flagged tab — without this the
+        // flag was dead (a PopOut tab with no window). SpawnTempTab runs on the
+        // PendingMessage worker thread under _tempTabsLock; TryOpen does
+        // OnTabActivated + Bind (window state Draw reads), so marshal onto the
+        // framework thread. If the pool is full, drop the flag so it never claims a
+        // window it didn't get (flag/window parity).
+        if (tab.PopOut)
+        {
+            Plugin.Framework.RunOnFrameworkThread(() =>
+            {
+                if (!_plugin.ChannelPopoutPool.TryOpen(tab))
+                    tab.PopOut = false;
+            });
+        }
     }
 
     private static Tab BuildTempTab(string playerName, uint worldRowId)
@@ -427,8 +441,12 @@ internal sealed class AutoTellTabsService : IDisposable
                 .Config.Tabs.Where(t => TabLifecycleHelpers.IsInUnpinnedPool(t) && t.PopOut)
                 .Select(t => t.Identifier)
                 .ToList();
-            // Pop-out-window cleanup is offline; see Disconnect path above.
-            _ = poppedTempTabIds;
+
+            // Close each popped temp tab's window before the tabs leave the list.
+            // Logout is a framework-thread event (serialized with Draw), so no
+            // marshalling is needed here, unlike the worker-thread eviction path.
+            foreach (var id in poppedTempTabIds)
+                _plugin.ChannelPopoutPool.TryClose(id);
 
             Plugin.Config.Tabs.RemoveAll(TabLifecycleHelpers.IsInUnpinnedPool);