diff --git a/editor/src/inspector/editors/script.rs b/editor/src/inspector/editors/script.rs
index 698de3aa1..2ffe5d1c9 100644
--- a/editor/src/inspector/editors/script.rs
+++ b/editor/src/inspector/editors/script.rs
@@ -272,7 +272,7 @@ fn create_items(
 
             ctx[item].user_data = Some(Arc::new(Mutex::new((
                 *type_uuid,
-                Some(constructor.source_path.clone()),
+                Some(constructor.source_path.to_string()),
             ))));
 
             item
diff --git a/fyrox-impl/src/engine/mod.rs b/fyrox-impl/src/engine/mod.rs
index 40b51a41b..188309bcb 100644
--- a/fyrox-impl/src/engine/mod.rs
+++ b/fyrox-impl/src/engine/mod.rs
@@ -2450,14 +2450,6 @@ impl Engine {
         resource_manager: &ResourceManager,
         plugin: &dyn Plugin,
     ) {
-        *serialization_context
-            .script_constructors
-            .context_type_id
-            .lock() = plugin.type_id();
-        *serialization_context
-            .node_constructors
-            .context_type_id
-            .lock() = plugin.type_id();
         *widget_constructors.context_type_id.lock() = plugin.type_id();
         plugin.register(PluginRegistrationContext {
             serialization_context,
@@ -2594,7 +2586,6 @@ impl Engine {
         script: &Script,
         plugin: &dyn Plugin,
     ) -> bool {
-        let plugin_type_id = plugin.type_id();
         let script_id = script.deref().id();
 
         if let Some(constructor) = serialization_context
@@ -2602,7 +2593,7 @@ impl Engine {
             .map()
             .get(&script_id)
         {
-            if constructor.source_type_id == plugin_type_id {
+            if constructor.assembly_name == plugin.assembly_name() {
                 return true;
             }
         }
@@ -2614,11 +2605,10 @@ impl Engine {
         node: &Node,
         plugin: &dyn Plugin,
     ) -> bool {
-        let plugin_type_id = plugin.type_id();
         let node_id = (*node).id();
 
         if let Some(constructor) = serialization_context.node_constructors.map().get(&node_id) {
-            if constructor.source_type_id == plugin_type_id {
+            if constructor.assembly_name == plugin.assembly_name() {
                 return true;
             }
         }
@@ -2674,6 +2664,7 @@ impl Engine {
         }
 
         let plugin_type_id = state.as_loaded_ref().plugin().type_id();
+        let plugin_assembly_name = state.as_loaded_ref().plugin().assembly_name();
 
         // Collect all the data that belongs to the plugin
         struct ScriptState {
@@ -2770,7 +2761,7 @@ impl Engine {
         let mut constructors = FxHashSet::default();
         for (type_uuid, constructor) in self.serialization_context.script_constructors.map().iter()
         {
-            if constructor.source_type_id == plugin_type_id {
+            if constructor.assembly_name == plugin_assembly_name {
                 constructors.insert(*type_uuid);
             }
         }
@@ -2783,7 +2774,7 @@ impl Engine {
         // Search for node constructors, that belongs to dynamic plugins and remove them.
         let mut constructors = FxHashSet::default();
         for (type_uuid, constructor) in self.serialization_context.node_constructors.map().iter() {
-            if constructor.source_type_id == plugin_type_id {
+            if constructor.assembly_name == plugin_assembly_name {
                 constructors.insert(*type_uuid);
             }
         }
@@ -2796,7 +2787,7 @@ impl Engine {
         // Search for widget constructors, that belongs to dynamic plugins and remove them.
         let mut constructors = FxHashSet::default();
         for (type_uuid, constructor) in self.widget_constructors.map().iter() {
-            if constructor.source_type_id == plugin_type_id {
+            if constructor.assembly_name == plugin_assembly_name {
                 constructors.insert(*type_uuid);
             }
         }
diff --git a/fyrox-impl/src/scene/node/constructor.rs b/fyrox-impl/src/scene/node/constructor.rs
index a66a8468a..9a7217182 100644
--- a/fyrox-impl/src/scene/node/constructor.rs
+++ b/fyrox-impl/src/scene/node/constructor.rs
@@ -25,28 +25,25 @@ use crate::{
     },
 };
 use fxhash::FxHashMap;
-use std::any::{Any, TypeId};
 
 /// Node constructor.
 pub struct NodeConstructor {
     /// A simple type alias for boxed node constructor.
     closure: Box<dyn FnMut() -> Node + Send>,
 
-    /// A type of the source of the script constructor.
-    pub source_type_id: TypeId,
+    /// A name of the assembly this node constructor is from.
+    pub assembly_name: &'static str,
 }
 
 /// A special container that is able to create nodes by their type UUID.
 
 pub struct NodeConstructorContainer {
-    pub(crate) context_type_id: Mutex<TypeId>,
     map: Mutex<FxHashMap<Uuid, NodeConstructor>>,
 }
 
 impl Default for NodeConstructorContainer {
     fn default() -> Self {
         Self {
-            context_type_id: Mutex::new(().type_id()),
             map: Default::default(),
         }
     }
@@ -94,7 +91,7 @@ impl NodeConstructorContainer {
             T::type_uuid(),
             NodeConstructor {
                 closure: Box::new(|| Node::new(T::default())),
-                source_type_id: *self.context_type_id.lock(),
+                assembly_name: T::type_assembly_name(),
             },
         );
 
diff --git a/fyrox-impl/src/scene/node/mod.rs b/fyrox-impl/src/scene/node/mod.rs
index 81423b270..a69e30da3 100644
--- a/fyrox-impl/src/scene/node/mod.rs
+++ b/fyrox-impl/src/scene/node/mod.rs
@@ -781,7 +781,7 @@ mod test {
             .script_constructors
             .map()
             .iter()
-            .any(|s| &s.1.source_path == file!()));
+            .any(|s| s.1.source_path == file!()));
 
         engine::initialize_resource_manager_loaders(
             &resource_manager,
diff --git a/fyrox-impl/src/script/constructor.rs b/fyrox-impl/src/script/constructor.rs
index 9afb8c27a..99ad8f35f 100644
--- a/fyrox-impl/src/script/constructor.rs
+++ b/fyrox-impl/src/script/constructor.rs
@@ -8,7 +8,6 @@ use crate::{
     },
     script::{Script, ScriptTrait},
 };
-use std::any::{Any, TypeId};
 use std::collections::BTreeMap;
 
 /// Script constructor contains all required data and methods to create script instances
@@ -21,15 +20,14 @@ pub struct ScriptConstructor {
     pub name: String,
 
     /// Script source path.
-    pub source_path: String,
+    pub source_path: &'static str,
 
-    /// A type of the source of the script constructor.
-    pub source_type_id: TypeId,
+    /// A name of the assembly this script constructor belongs to.
+    pub assembly_name: &'static str,
 }
 
 /// A special container that is able to create nodes by their type UUID.
 pub struct ScriptConstructorContainer {
-    pub(crate) context_type_id: Mutex<TypeId>,
     // BTreeMap allows to have sorted list of constructors.
     map: Mutex<BTreeMap<Uuid, ScriptConstructor>>,
 }
@@ -37,7 +35,6 @@ pub struct ScriptConstructorContainer {
 impl Default for ScriptConstructorContainer {
     fn default() -> Self {
         Self {
-            context_type_id: Mutex::new(().type_id()),
             map: Default::default(),
         }
     }
@@ -63,8 +60,8 @@ impl ScriptConstructorContainer {
             ScriptConstructor {
                 constructor: Box::new(|| Script::new(T::default())),
                 name: name.to_owned(),
-                source_path: T::source_path().to_owned(),
-                source_type_id: *self.context_type_id.lock(),
+                source_path: T::source_path(),
+                assembly_name: T::type_assembly_name(),
             },
         );
 
diff --git a/fyrox-ui/src/node/constructor.rs b/fyrox-ui/src/node/constructor.rs
index 6f28857ce..9d32d64d4 100644
--- a/fyrox-ui/src/node/constructor.rs
+++ b/fyrox-ui/src/node/constructor.rs
@@ -57,8 +57,8 @@ pub struct WidgetConstructor {
     /// A simple type alias for boxed widget constructor.
     closure: Box<dyn FnMut() -> UiNode + Send>,
 
-    /// A type of the source of the script constructor.
-    pub source_type_id: TypeId,
+    /// A name of the assembly this widget constructor belongs to.
+    pub assembly_name: &'static str,
 }
 
 /// A special container that is able to create widgets by their type UUID.
@@ -233,7 +233,7 @@ impl WidgetConstructorContainer {
             T::type_uuid(),
             WidgetConstructor {
                 closure: Box::new(|| UiNode::new(T::default())),
-                source_type_id: *self.context_type_id.lock(),
+                assembly_name: T::type_assembly_name(),
             },
         );