diff --git a/platform/usageView/src/com/intellij/usages/impl/UsageViewImpl.java b/platform/usageView/src/com/intellij/usages/impl/UsageViewImpl.java
index 3182b17fc24a..b1f237ee9d83 100644
--- a/platform/usageView/src/com/intellij/usages/impl/UsageViewImpl.java
+++ b/platform/usageView/src/com/intellij/usages/impl/UsageViewImpl.java
@@ -1700,7 +1700,9 @@ public class UsageViewImpl implements UsageView {
         sink.put(PlatformDataKeys.COPY_PROVIDER, myCopyProvider);
       }
       else {
-        Node node = getSelectedNode();
+        // can arrive here outside EDT from usage view preview.
+        // ignore all these fancy actions in this case.
+        Node node = ApplicationManager.getApplication().isDispatchThread() ? getSelectedNode() : null;
         if (node != null) {
           Object userObject = node.getUserObject();
           if (userObject instanceof TypeSafeDataProvider) {