diff --git a/Compiler/PCU/PCUWriter.cs b/Compiler/PCU/PCUWriter.cs
index ef87071ac..1dc21a210 100644
--- a/Compiler/PCU/PCUWriter.cs
+++ b/Compiler/PCU/PCUWriter.cs
@@ -903,6 +903,25 @@ namespace PascalABCCompiler.PCU
                 foreach (statement_node st in stmt_list.statements)
                     AddIndirectUsedUnitsInStatement(st, ns_dict, interf);
             }
+            /*else if (stmt is common_static_method_call)
+            {
+                common_static_method_call csmc = stmt as common_static_method_call;
+                AddIndirectUsedUnitsForType(csmc.common_type, ns_dict, interf);
+                
+            }
+            else if (stmt is if_node)
+            {
+                if_node node = stmt as if_node;
+                AddIndirectUsedUnitsInStatement(node.condition, ns_dict, interf);
+            }
+            if (stmt is base_function_call)
+            {
+                base_function_call bfc = stmt as base_function_call;
+                foreach (var expr in bfc.parameters)
+                {
+                    AddIndirectUsedUnitsInStatement(expr, ns_dict, interf);
+                }
+            }*/
             
         }
 
diff --git a/TestSuite/implicitexplicit11.pas b/TestSuite/implicitexplicit11.pas
new file mode 100644
index 000000000..31600ced2
--- /dev/null
+++ b/TestSuite/implicitexplicit11.pas
@@ -0,0 +1,25 @@
+var i: integer;
+type
+  t0 = class end;
+  
+  t1 = class
+    
+    static function operator implicit<T>(o: T): t1;
+    where T: record;
+    begin 
+      i := 1;
+    end;
+    
+    static function operator implicit(o: t0): t1;
+    begin 
+      i := 2;
+    end;
+    
+  end;
+  
+procedure p1(q: t1) := exit;
+
+begin
+  p1(new t0);
+  assert(i = 2);
+end.
\ No newline at end of file
diff --git a/TestSuite/implicitexplicit12.pas b/TestSuite/implicitexplicit12.pas
new file mode 100644
index 000000000..b2a7b9445
--- /dev/null
+++ b/TestSuite/implicitexplicit12.pas
@@ -0,0 +1,19 @@
+var i: integer;
+type
+  t1 = class
+    static function operator implicit<T>(o: T): t1;
+    where T: record;
+    begin 
+      i := 1;
+    end;
+  end;
+  
+  t2<T> = class(t1) end;
+  
+procedure p1(q: t1) := exit;
+
+begin
+  //Ошибка: Невозможно инстанцировать, так как тип t2<byte> не является размерным
+  p1(new t2<byte>);
+  assert(i = 0);
+end.
\ No newline at end of file
diff --git a/TreeConverter/TreeRealization/types.cs b/TreeConverter/TreeRealization/types.cs
index 7e7b91fbd..72f10653a 100644
--- a/TreeConverter/TreeRealization/types.cs
+++ b/TreeConverter/TreeRealization/types.cs
@@ -2321,7 +2321,12 @@ namespace PascalABCCompiler.TreeRealization
                         {
                             if (this.instance_params != null && this.instance_params.Count > 0)
                             {
-                                fn = fn.get_instance(this.instance_params, true, null);
+                                if (fn.parameters[0].type.is_generic_parameter)
+                                    fn = fn.get_instance(new List<type_node>() { this }, false, null);
+                                else
+                                    fn = fn.get_instance(this.instance_params, false, null);
+                                if (fn == null)
+                                    continue;
                             }
                             else if (ctn.instance_params != null && ctn.instance_params.Count > 0)
                             {
@@ -2332,6 +2337,8 @@ namespace PascalABCCompiler.TreeRealization
                                 if (ctn.IsPointer)
                                     continue;
                                 fn = fn.get_instance(new List<type_node>(new type_node[] { ctn }), false, null);
+                                if (fn == null)
+                                    continue;
                             }
                         }
                         return fn;
@@ -2363,9 +2370,11 @@ namespace PascalABCCompiler.TreeRealization
                             else if (ctn.instance_params != null && ctn.instance_params.Count > 0)
                             {
                                 if (fn.parameters[0].type.is_generic_parameter)
-                                    fn = fn.get_instance(new List<type_node>() { ctn }, true, null);
+                                    fn = fn.get_instance(new List<type_node>() { ctn }, false, null);
                                 else
-                                    fn = fn.get_instance(ctn.instance_params, true, null);
+                                    fn = fn.get_instance(ctn.instance_params, false, null);
+                                if (fn == null)
+                                    continue;
                             }
                             else if (fn.get_generic_params_list() != null && fn.get_generic_params_list().Count > 0)
                             {
@@ -2374,6 +2383,8 @@ namespace PascalABCCompiler.TreeRealization
                                 if (ctn.IsPointer)
                                     continue;
                                 fn = fn.get_instance(new List<type_node>(new type_node[] { ctn }), false, null);
+                                if (fn == null)
+                                    continue;
                             }
                         }
                         return fn;