[rules-users] RuleFlow and Internal Model

Hi, We are attempting to use a rule flow in Guvnor 5.0.0 CR1. When we use the internal data model, we get an error that essentially reads " java.lang.IllegalArgumentException: OR split could not find at least one valid outgoing connection for split" When we use an external data model (model in java) instead of the internal data model, the ruleflow runs perfectly. Any similar experiences? What is the way out? Would appreciate input. Krishna