diff --git a/Elwig/Helpers/AppDbContext.cs b/Elwig/Helpers/AppDbContext.cs
index 1749688..6073eab 100644
--- a/Elwig/Helpers/AppDbContext.cs
+++ b/Elwig/Helpers/AppDbContext.cs
@@ -78,7 +78,7 @@ namespace Elwig.Helpers {
         public bool HasBackendChanged => SavedLastWriteTime != LastWriteTime;
 
         public static string? ConnectionStringOverride { get; set; } = null;
-        public static string ConnectionString => ConnectionStringOverride ?? $"Data Source=\"{App.Config.DatabaseFile}\"; Mode=ReadWrite; Foreign Keys=True; Cache=Default";
+        public static string ConnectionString => ConnectionStringOverride ?? $"Data Source=\"{App.Config.DatabaseFile}\"; Mode=ReadWrite; Foreign Keys=True; Cache=Default; Pooling=False";
 
         private readonly Dictionary<int, Dictionary<int, Dictionary<string, AreaComBucket>>> _memberAreaCommitmentBuckets = [];
         private readonly Dictionary<int, Dictionary<int, Dictionary<string, int>>> _memberDeliveryBuckets = [];
diff --git a/Elwig/Services/MemberService.cs b/Elwig/Services/MemberService.cs
index 0bf1495..5a10af9 100644
--- a/Elwig/Services/MemberService.cs
+++ b/Elwig/Services/MemberService.cs
@@ -171,6 +171,9 @@ namespace Elwig.Services {
                     .GroupBy(d => d.Year)
                     .ToDictionaryAsync(g => g.Key, g => g.Any());
 
+                if (m.MgNr != vm.MgNr)
+                    return;
+
                 await App.MainDispatcher.BeginInvoke(() => {
                     var (d1Grid, _) = DeliveryService.GenerateToolTip(d1GridData, []);
                     var (d2Grid, _) = DeliveryService.GenerateToolTip(d2GridData, []);
diff --git a/Tests/E2ETests/Setup.cs b/Tests/E2ETests/Setup.cs
index 4c46a60..3988afa 100644
--- a/Tests/E2ETests/Setup.cs
+++ b/Tests/E2ETests/Setup.cs
@@ -15,7 +15,7 @@ namespace Tests.E2ETests {
         [OneTimeSetUp]
         public static async Task SetupDatabase() {
             if (File.Exists(Utils.TestDatabasePath)) File.Delete(Utils.TestDatabasePath);
-            using var cnx = await AppDbContext.ConnectAsync($"Data Source=\"{Utils.TestDatabasePath}\"; Mode=ReadWriteCreate; Foreign Keys=True; Cache=Default");
+            using var cnx = await AppDbContext.ConnectAsync($"Data Source=\"{Utils.TestDatabasePath}\"; Mode=ReadWriteCreate; Foreign Keys=True; Cache=Default; Pooling=False");
             await AppDbContext.ExecuteEmbeddedScript(cnx, Assembly.GetExecutingAssembly(), "Tests.Resources.Sql.Create.sql");
             await AppDbContext.ExecuteEmbeddedScript(cnx, Assembly.GetExecutingAssembly(), "Tests.Resources.Sql.Insert.sql");
             await AppDbContext.ExecuteEmbeddedScript(cnx, Assembly.GetExecutingAssembly(), "Tests.Resources.Sql.E2EInsert.sql");