There's a character encoding problem hindering the EXPLORE functionality. To reproduce, start out with a simple kb such as
and switch to the EXPLORE tab. When entering <http://a> and submitting data, the workbench correctly displays the outgoing link to b. However, when trying to follow this link by clicking on <http://b>, the field on top is initialized with <%3Chttp://b%3E> rather than <http://b> (and no data is shown).