Looks like we have a bug in processing some of the function IRIs. It treated by mistake some of the ogcf: functions as unknown. We already have a fix. Please file an SR, email me know the SR#, and we will deliver the fix to you.
email address: alan dot wu at oracle dot com
Good news. We have just released a patch. Please download the latest support for Apache Jena and Fuseki (dated: June 2016) from the following page and let us know if the problem goes away.