Problem with db-treeview webcomponent

Hello Everybody

We use the DB-Treeview webcomponent with servoy 8.1.4 ng-client
Everything looked good, but now our users found that the component only shows 60 subnodes?

The component is bound to a relation.(tablea_to_tablea_tree = select id from table where parentid = ?currentid

When this results in more that 60 records the component shows only 60 records ???

Is this possibel? Is this a bug?
Do we miss something else?

Regards
Albert