diff --git a/sway-core/src/decl_engine/engine.rs b/sway-core/src/decl_engine/engine.rs
index c170d8a1664..cf1bc2318a0 100644
--- a/sway-core/src/decl_engine/engine.rs
+++ b/sway-core/src/decl_engine/engine.rs
@@ -190,16 +190,16 @@ macro_rules! decl_engine_clear_module {
                 self.parents.write().unwrap().retain(|key, _| {
                     match key {
                         AssociatedItemDeclId::TraitFn(decl_id) => {
-                            self.get_trait_fn(decl_id).span().source_id().map_or(false, |src_id| &src_id.module_id() != module_id)
+                            self.get_trait_fn(decl_id).span().source_id().map_or(true, |src_id| &src_id.module_id() != module_id)
                         },
                         AssociatedItemDeclId::Function(decl_id) => {
-                            self.get_function(decl_id).span().source_id().map_or(false, |src_id| &src_id.module_id() != module_id)
+                            self.get_function(decl_id).span().source_id().map_or(true, |src_id| &src_id.module_id() != module_id)
                         },
                         AssociatedItemDeclId::Type(decl_id) => {
-                            self.get_type(decl_id).span().source_id().map_or(false, |src_id| &src_id.module_id() != module_id)
+                            self.get_type(decl_id).span().source_id().map_or(true, |src_id| &src_id.module_id() != module_id)
                         },
                         AssociatedItemDeclId::Constant(decl_id) => {
-                            self.get_constant(decl_id).span().source_id().map_or(false, |src_id| &src_id.module_id() != module_id)
+                            self.get_constant(decl_id).span().source_id().map_or(true, |src_id| &src_id.module_id() != module_id)
                         },
                     }
                 });
@@ -207,7 +207,7 @@ macro_rules! decl_engine_clear_module {
                 $(
                     self.$slab.retain(|_k, ty| match ty.span().source_id() {
                         Some(source_id) => &source_id.module_id() != module_id,
-                        None => false,
+                        None => true,
                     });
                 )*
             }
diff --git a/sway-core/src/decl_engine/parsed_engine.rs b/sway-core/src/decl_engine/parsed_engine.rs
index c3c15fc0709..463117735fd 100644
--- a/sway-core/src/decl_engine/parsed_engine.rs
+++ b/sway-core/src/decl_engine/parsed_engine.rs
@@ -142,7 +142,7 @@ macro_rules! decl_engine_clear_module {
                         let span = $getter(item);
                         match span.source_id() {
                             Some(source_id) => &source_id.module_id() != module_id,
-                            None => false,
+                            None => true,
                         }
                     });
                 )*
diff --git a/sway-core/src/type_system/engine.rs b/sway-core/src/type_system/engine.rs
index c6f316e3a78..b8a732892bb 100644
--- a/sway-core/src/type_system/engine.rs
+++ b/sway-core/src/type_system/engine.rs
@@ -72,14 +72,14 @@ impl TypeEngine {
     pub fn clear_module(&mut self, module_id: &ModuleId) {
         self.slab.retain(|_, tsi| match tsi.source_id {
             Some(source_id) => &source_id.module_id() != module_id,
-            None => false,
+            None => true,
         });
         self.id_map
             .write()
             .unwrap()
             .retain(|tsi, _| match tsi.source_id {
                 Some(source_id) => &source_id.module_id() != module_id,
-                None => false,
+                None => true,
             });
     }
 
diff --git a/sway-lsp/tests/lib.rs b/sway-lsp/tests/lib.rs
index 4b6cc507b67..1345a1daf6d 100644
--- a/sway-lsp/tests/lib.rs
+++ b/sway-lsp/tests/lib.rs
@@ -60,6 +60,7 @@ async fn open(server: &ServerState, entry_point: PathBuf) -> Url {
 async fn init_and_open(service: &mut LspService<ServerState>, entry_point: PathBuf) -> Url {
     let _ = lsp::initialize_request(service).await;
     lsp::initialized_notification(service).await;
+    eprintln!("entry_point: {:?}", entry_point);
     let (uri, sway_program) = load_sway_example(entry_point);
     lsp::did_open_notification(service, &uri, &sway_program).await;
     uri
@@ -138,7 +139,7 @@ async fn did_change_stress_test() {
     shutdown_and_exit(&mut service).await;
 }
 
-// #[tokio::test]
+#[tokio::test]
 #[allow(dead_code)]
 async fn did_change_stress_test_random_wait() {
     std::env::set_var("RUST_BACKTRACE", "1");
@@ -147,15 +148,16 @@ async fn did_change_stress_test_random_wait() {
         default_panic(panic_info); // Print the panic message
         std::process::exit(1);
     }));
-
     let (mut service, _) = LspService::build(ServerState::new)
         .custom_method("sway/metrics", ServerState::metrics)
         .finish();
-    let bench_dir = sway_workspace_dir().join("sway-lsp/tests/fixtures/benchmark");
-    let uri = init_and_open(&mut service, bench_dir.join("src/main.sw")).await;
-    let times = 40000;
+    let example_dir = sway_workspace_dir()
+        .join(e2e_language_dir())
+        .join("generics_in_contract");
+    let uri = init_and_open(&mut service, example_dir.join("src/main.sw")).await;
+    let times = 400;
     for version in 0..times {
-        eprintln!("version: {}", version);
+        //eprintln!("version: {}", version);
         let _ = lsp::did_change_request(&mut service, &uri, version + 1).await;
         if version == 0 {
             service.inner().wait_for_parsing().await;
@@ -165,7 +167,6 @@ async fn did_change_stress_test_random_wait() {
             rand::random::<u64>() % 30 + 1,
         ))
         .await;
-
         // there is a 10% chance that a longer 300-1000ms wait will be added
         if rand::random::<u64>() % 10 < 1 {
             tokio::time::sleep(tokio::time::Duration::from_millis(