Merge pull request #22354 from evandropoa/resources_list_icon_issue

Fix icon issue for the resource list popup #22320.

editor/editor_node.cpp

@@ -3201,7 +3201,7 @@ Ref<Texture> EditorNode::get_class_icon(const String &p_class, const String &p_f
 		}
 	}
 
-	if (p_fallback.length())
+	if (p_fallback.length() && gui_base->has_icon(p_fallback, "EditorIcons"))
 		return gui_base->get_icon(p_fallback, "EditorIcons");
 
 	return NULL;