diff --git a/packages/xod-client/src/hinting/patchMarkers.js b/packages/xod-client/src/hinting/patchMarkers.js
index 1cdda539..e39f5fc7 100644
--- a/packages/xod-client/src/hinting/patchMarkers.js
+++ b/packages/xod-client/src/hinting/patchMarkers.js
@@ -6,7 +6,11 @@ import * as EAT from '../editor/actionTypes';
 
 // :: Action -> Boolean
 const isLoadingProjectAction = R.propSatisfies(
-  isAmong([PAT.PROJECT_IMPORT, PAT.PROJECT_OPEN]),
+  isAmong([
+    PAT.PROJECT_IMPORT,
+    PAT.PROJECT_OPEN,
+    EAT.INSTALL_LIBRARIES_COMPLETE,
+  ]),
   'type'
 );
 
diff --git a/packages/xod-client/src/hinting/typeDeduction.js b/packages/xod-client/src/hinting/typeDeduction.js
index b9e78eb6..52bf96a7 100644
--- a/packages/xod-client/src/hinting/typeDeduction.js
+++ b/packages/xod-client/src/hinting/typeDeduction.js
@@ -36,7 +36,6 @@ export const shallDeduceTypes = R.curry((project, action) =>
         isAmong([
           PAT.PROJECT_UPDATE_META,
           PAT.NODE_ADD,
-          PAT.NODE_CHANGE_ARITY_LEVEL,
           PAT.NODE_RESIZE,
           PAT.COMMENT_ADD,
           PAT.COMMENT_RESIZE,
@@ -52,6 +51,7 @@ export const shallDeduceTypes = R.curry((project, action) =>
           // PAT.PATCH_RENAME,
           // PAT.BULK_DELETE_ENTITIES,
           // PAT.LINK_ADD,
+          // PAT.NODE_CHANGE_ARITY_LEVEL,
           // PAT.NODE_CHANGE_SPECIALIZATION,
           // For NODE_UPDATE_PROPERTY will be a special check
         ])