diff --git a/DXFeedFrameworkTests/DXConnectionStateTests.swift b/DXFeedFrameworkTests/DXConnectionStateTests.swift
index 29743d7ce..f559550d3 100644
--- a/DXFeedFrameworkTests/DXConnectionStateTests.swift
+++ b/DXFeedFrameworkTests/DXConnectionStateTests.swift
@@ -60,14 +60,14 @@ final class DXConnectionStateTests: XCTestCase {
         try endpoint?.close()
         try endpoint?.disconnect()
         wait(seconds: 2)
-        Isolate.shared.callGC()
+//        Isolate.shared.callGC()
         state = try? endpoint?.getState()
         try endpoint?.close()
         state = try? endpoint?.getState()
-        Isolate.shared.callGC()
+//        Isolate.shared.callGC()
         try endpoint?.close()
         state = try? endpoint?.getState()
-        Isolate.shared.callGC()
+//        Isolate.shared.callGC()
         state = try? endpoint?.getState()
         endpoint = nil
         endpoint = try DXEndpoint.builder().withRole(.feed).withProperty("test", "value").build()
diff --git a/DXFeedFrameworkTests/DXConnectionTest.swift b/DXFeedFrameworkTests/DXConnectionTest.swift
index 9046d42c0..5a48e4ec9 100644
--- a/DXFeedFrameworkTests/DXConnectionTest.swift
+++ b/DXFeedFrameworkTests/DXConnectionTest.swift
@@ -72,11 +72,4 @@ final class DXConnectionTest: XCTestCase {
 
         wait(for: [receivedEventsExpectation], timeout: 2)
     }
-
-    func testPerformanceExample() throws {
-        // This is an example of a performance test case.
-        self.measure {
-            // Put the code you want to measure the time of here.
-        }
-    }
 }
diff --git a/DXFeedFrameworkTests/DXExceptPublisherTests.xctestplan b/DXFeedFrameworkTests/DXExceptPublisherTests.xctestplan
index 31f451be3..74ec00802 100644
--- a/DXFeedFrameworkTests/DXExceptPublisherTests.xctestplan
+++ b/DXFeedFrameworkTests/DXExceptPublisherTests.xctestplan
@@ -32,6 +32,9 @@
         "CandleTests\/testParseLongSymbol()",
         "CandleTests\/testParseShortSymbol()",
         "CandleTests\/testSnapshot()",
+        "DXConnectionTest\/testConnection()",
+        "DXConnectionTest\/testDXLinkConnection()",
+        "DXConnectionTest\/testPerformanceExample()",
         "DateTests\/testDateConvert()",
         "DateTests\/testExample()",
         "DateTests\/testPerformanceExample()",
diff --git a/DXFeedFrameworkTests/DXFeedAllTests.xctestplan b/DXFeedFrameworkTests/DXFeedAllTests.xctestplan
index eb229f7d1..6b0e5215d 100644
--- a/DXFeedFrameworkTests/DXFeedAllTests.xctestplan
+++ b/DXFeedFrameworkTests/DXFeedAllTests.xctestplan
@@ -20,8 +20,11 @@
     "environmentVariableEntries" : [
 
     ],
+    "maximumTestRepetitions" : 10,
     "testRepetitionMode" : "retryOnFailure",
-    "threadSanitizerEnabled" : true
+    "testTimeoutsEnabled" : true,
+    "threadSanitizerEnabled" : true,
+    "undefinedBehaviorSanitizerEnabled" : true
   },
   "testTargets" : [
     {
diff --git a/Samples/QdsTools/SceneDelegate.swift b/Samples/QdsTools/SceneDelegate.swift
index 28178bd4a..2e2889875 100644
--- a/Samples/QdsTools/SceneDelegate.swift
+++ b/Samples/QdsTools/SceneDelegate.swift
@@ -14,7 +14,6 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate {
     func scene(_ scene: UIScene,
                willConnectTo session: UISceneSession,
                options connectionOptions: UIScene.ConnectionOptions) {
-        guard let _ = (scene as? UIWindowScene) else { return }
     }
 
     func sceneDidDisconnect(_ scene: UIScene) {