being written hasn't been registered yet and does not have an explicit ID set. The old way would try to send it anyway and then it would fail to get received on the other end. A setStrictRegistration(false) method can be used to get the old behavior if needed. git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@7222 75d07b2b-3a1a-0410-a2c5-0572b91ccdca