diff --git a/test/DryIoc.IssuesTests/GHIssue667_Resolve_with_serviceKey_does_not_invoke_factory_selector.cs b/test/DryIoc.IssuesTests/GHIssue667_Resolve_with_serviceKey_does_not_invoke_factory_selector.cs
new file mode 100644
index 00000000..1246f774
--- /dev/null
+++ b/test/DryIoc.IssuesTests/GHIssue667_Resolve_with_serviceKey_does_not_invoke_factory_selector.cs
@@ -0,0 +1,45 @@
+using NUnit.Framework;
+
+using System;
+using System.Text;
+using DryIoc.FastExpressionCompiler.LightExpression;
+using System.Linq;
+using System.Diagnostics;
+using DryIoc.ImTools;
+
+namespace DryIoc.IssuesTests;
+
+[TestFixture]
+public class GHIssue667_Resolve_with_serviceKey_does_not_invoke_factory_selector : ITest
+{
+    public int Run()
+    {
+        // Original_case(); //todo: @fixme @wip
+        return 1;
+    }
+
+    public interface IFoo { }
+    public class Foo : IFoo { }
+
+    [Test]
+    public void Original_case()
+    {
+        var count = 0;
+        var container = new Container(rules =>
+            rules.WithFactorySelector(
+                (request, single, many) =>
+                {
+                    ++count;
+                    return single
+                        ?? many.FindFirst(request.ServiceKey, static (sk, f) => f.Key.Equals(sk))?.Value;
+                }));
+
+        container.Register<IFoo, Foo>(); // Default
+        container.Register<IFoo, Foo>(serviceKey: "my"); // Keyed
+        _ = container.Resolve<IFoo>(); // Custom factory selector invoked
+        Assert.AreEqual(1, count);
+
+        _ = container.Resolve<IFoo>("my"); // Custom factory selector NOT invoked
+        Assert.AreEqual(2, count);
+    }
+}
diff --git a/test/DryIoc.TestRunner/Program.cs b/test/DryIoc.TestRunner/Program.cs
index 998a6102..c427c912 100644
--- a/test/DryIoc.TestRunner/Program.cs
+++ b/test/DryIoc.TestRunner/Program.cs
@@ -9,7 +9,8 @@ public class Program
 {
     public static void Main()
     {
-        new GHIssue503_Compile_time_container().Run();
+        new GHIssue667_Resolve_with_serviceKey_does_not_invoke_factory_selector().Run();
+        // new GHIssue503_Compile_time_container().Run();
         // new GHIssue659_Can_I_inspect_a_scope_for_all_the_dependencies_resolved_in_the_scope().Run();
         // new GHIssue191_Optional_IResolverContext_argument_in_Func_of_service().Run();
         // new GHIssue619_FaultySingletonDependency().Run();