diff --git a/src/editor.js b/src/editor.js
index 73f1447..f9f21d2 100644
--- a/src/editor.js
+++ b/src/editor.js
@@ -1121,7 +1121,7 @@ define(['bslGlobals', 'bslMetadata', 'snippets', 'bsl_language', 'vs/editor/edit
 
   setOption = function (optionName, optionValue) {
 
-    setTimeout(() => {
+    // setTimeout(() => { // Асинхронное выполнение не совместимо со старым API и рождает много скрытых проблем https://github.com/salexdv/bsl_console/issues/297
 
       editor[optionName] = optionValue;
       editor_options[optionName] = optionValue;
@@ -1138,7 +1138,7 @@ define(['bslGlobals', 'bslMetadata', 'snippets', 'bsl_language', 'vs/editor/edit
       if (optionName == 'generateSuggestActivationEvent')
         startStopSuggestActivationObserver();
         
-    }, 10);
+    // }, 10);
 
   }
 
@@ -1818,8 +1818,9 @@ define(['bslGlobals', 'bslMetadata', 'snippets', 'bsl_language', 'vs/editor/edit
   // #region non-public functions
   function getLineNumber(originalLineNumber) {
 
-    if (originalLineNumber < lineNumbersDedocrations.length)
-      return lineNumbersDedocrations[originalLineNumber] + ' ' + originalLineNumber;
+    // Исправлена потеря первой декорации https://github.com/salexdv/bsl_console/issues/296#issuecomment-1303625104
+    if (originalLineNumber <= lineNumbersDedocrations.length)
+      return lineNumbersDedocrations[originalLineNumber - 1] + ' ' + originalLineNumber;
     
      return originalLineNumber;