Error creating entity browser form with treeTable type

Hi all,
I created an entity Department with assosiation 1-to-1 attribute “parent” and tried to create a entity browser form with treeType table and got the error message below.
What’s wrong?

[15:00:29.612] Unexpected error
groovy.lang.MissingPropertyException: No such property: tableType_hierarchicalProperty for class: SimpleTemplateScript36
[15:00:29.613] Exception has been thrown by com.haulmont.studio.ui.app.a@7a3e4a4b:
[15:00:29.614] groovy.lang.MissingPropertyException: No such property: tableType_hierarchicalProperty for class: SimpleTemplateScript36
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.java:53)
at org.codehaus.groovy.runtime.callsite.PogoGetPropertySite.getProperty(PogoGetPropertySite.java:52)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGroovyObjectGetProperty(AbstractCallSite.java:307)
at SimpleTemplateScript36.run(SimpleTemplateScript36.groovy:41)
at groovy.text.SimpleTemplateEngine$SimpleTemplate$1.writeTo(SimpleTemplateEngine.java:168)
at com.haulmont.studio.backend.D.b(SourceFile:156)
at com.haulmont.studio.backend.D.b(SourceFile:120)
at com.haulmont.studio.backend.sd.template.a.a(SourceFile:83)
at com.haulmont.studio.ui.sd.d.d.b(SourceFile:66)
at com.haulmont.studio.ui.r.a.g.buttonClick(SourceFile:73)
at sun.reflect.GeneratedMethodAccessor110.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:508)
at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:198)
at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:161)
at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:1008)
at com.vaadin.ui.Button.fireClick(Button.java:377)
at com.vaadin.ui.Button$1.click(Button.java:54)

Hi,

The issue is known. We have already fixed it. We are going to deliver it with the next Studio release (6.4.1).

Hi,
When the Studio 6.4.1 will be released? Is there any workaround now?
I have Studio 6.4.0.

:ticket: See the following issue in our bug tracker:

https://youtrack.cuba-platform.com/issue/STUDIO-3363