Index: reference/jquery-plugins/select2-4.0.13/src/scss/theme/default/layout.scss
===================================================================
diff -u -rbcda6d3776044a8dad4e05608bc79f87716228a2 -rf6e397b8f9866d73680ada42767032f85f93306e
--- reference/jquery-plugins/select2-4.0.13/src/scss/theme/default/layout.scss	(.../layout.scss)	(revision bcda6d3776044a8dad4e05608bc79f87716228a2)
+++ reference/jquery-plugins/select2-4.0.13/src/scss/theme/default/layout.scss	(.../layout.scss)	(revision f6e397b8f9866d73680ada42767032f85f93306e)
@@ -638,7 +638,9 @@
 			}
 		})
 		.bind("loaded.jstree", function (event, data) {
-			$(jQueryElementID).jstree('open_all');
+			setTimeout(function(){
+				$(jQueryElementID).jstree('open_all');
+			},1500);
 		});
 
 	$("#mmenu input, #mmenu button").click(function () {