Added refresh on leave of syncshell.

LightlessSync/Services/Mediator/Messages.cs

@@ -107,6 +107,7 @@ public record GPoseLobbyReceiveWorldData(UserData UserData, WorldData WorldData)
 public record OpenCharaDataHubWithFilterMessage(UserData UserData) : MessageBase;
 public record EnableBroadcastMessage(string HashedCid, bool Enabled) : MessageBase;
 public record BroadcastStatusChangedMessage(bool Enabled, TimeSpan? Ttl) : MessageBase;
+public record UserLeftSyncshellReloadFinderUi(bool hasLeft, string gid) : MessageBase; 
 public record SyncshellBroadcastsUpdatedMessage : MessageBase;
 public record PairRequestReceivedMessage(string HashedCid, string Message) : MessageBase;
 public record PairRequestsUpdatedMessage : MessageBase;

LightlessSync/UI/Components/DrawFolderGroup.cs

@@ -111,6 +111,7 @@ public class DrawFolderGroup : DrawFolderBase
         if (_uiSharedService.IconTextButton(FontAwesomeIcon.ArrowCircleLeft, "Leave Syncshell", menuWidth, true) && UiSharedService.CtrlPressed())
         {
             _ = _apiController.GroupLeave(_groupFullInfoDto);
+            _lightlessMediator.Publish(new UserLeftSyncshellReloadFinderUi(hasLeft: true, _groupFullInfoDto.GID));
             ImGui.CloseCurrentPopup();
         }
         UiSharedService.AttachToolTip("Hold CTRL and click to leave this Syncshell" + (!string.Equals(_groupFullInfoDto.OwnerUID, _apiController.UID, StringComparison.Ordinal)

LightlessSync/UI/SyncshellFinderUI.cs

@@ -14,6 +14,7 @@ using LightlessSync.Services.Mediator;
 using LightlessSync.Utils;
 using LightlessSync.WebAPI;
 using Microsoft.Extensions.Logging;
+using System.Collections.Specialized;
 using System.Numerics;
 
 namespace LightlessSync.UI;
@@ -67,6 +68,7 @@ public class SyncshellFinderUI : WindowMediatorSubscriberBase
 
         Mediator.Subscribe<SyncshellBroadcastsUpdatedMessage>(this, async _ => await RefreshSyncshellsAsync().ConfigureAwait(false));
         Mediator.Subscribe<BroadcastStatusChangedMessage>(this, async _ => await RefreshSyncshellsAsync().ConfigureAwait(false));
+        Mediator.Subscribe<UserLeftSyncshellReloadFinderUi>(this, async _ => await RefreshSyncshellsAsync(_.gid).ConfigureAwait(false));
     }
 
     public override async void OnOpen()
@@ -121,7 +123,6 @@ public class SyncshellFinderUI : WindowMediatorSubscriberBase
             return;
         }
 
-        // Build card data (same as you had)
         var cardData = new List<(GroupJoinDto Shell, string BroadcasterName)>();
         var broadcasts = _broadcastScannerService.GetActiveSyncshellBroadcasts();
 
@@ -131,7 +132,6 @@ public class SyncshellFinderUI : WindowMediatorSubscriberBase
 
             if (_useTestSyncshells)
             {
-                // Fake broadcaster for test mode
                 var displayName = !string.IsNullOrEmpty(shell.Group.Alias)
                     ? shell.Group.Alias
                     : shell.Group.GID;
@@ -473,24 +473,22 @@ public class SyncshellFinderUI : WindowMediatorSubscriberBase
         ImGui.NewLine();
     }
 
-    private async Task RefreshSyncshellsAsync()
+    private async Task RefreshSyncshellsAsync(string gid = null)
     {
         var syncshellBroadcasts = _broadcastScannerService.GetActiveSyncshellBroadcasts();
         _currentSyncshells = [.. _pairManager.GroupPairs.Select(g => g.Key)];
 
         _recentlyJoined.RemoveWhere(gid =>
-            _currentSyncshells.Any(s => string.Equals(s.GID, gid, StringComparison.Ordinal)));
+            _currentSyncshells.Exists(s => string.Equals(s.GID, gid, StringComparison.Ordinal)));
 
         List<GroupJoinDto>? updatedList = [];
 
         if (_useTestSyncshells)
         {
-            // ---- TEST DATA PATH ----
             updatedList = BuildTestSyncshells();
         }
         else
         {
-            // ---- NORMAL BEHAVIOUR ----
             if (syncshellBroadcasts.Count == 0)
             {
                 ClearSyncshells();
@@ -516,6 +514,11 @@ public class SyncshellFinderUI : WindowMediatorSubscriberBase
             return;
         }
 
+        if (gid != null && _recentlyJoined.Contains(gid))
+        {
+            _recentlyJoined.Remove(gid);
+        }
+
         var previousGid = GetSelectedGid();
 
         _nearbySyncshells.Clear();