All aspects of the system are working fine. Drag n Drop does not work however. Tried Chrome and Firefox. Mac and PC. Same result. Any ideas?

2013-02-15 15:26:53,028 ERROR [org.nuxeo.ecm.webengine.app.WebEngineExceptionMap per] Exception in JAX-RS processing java.lang.NullPointerException

    at java.util.ArrayList.<init>(ArrayList.java:151)
    at org.nuxeo.ecm.automation.core.util.BlobList.<init>(BlobList.java:34)
    at org.nuxeo.ecm.automation.server.jaxrs.batch.BatchResource.exec(BatchR

esource.java:102)

Tom