[Boost-users] Meta State Machine, wayward transition

Hello, I have a simple state machine, that uses only standard rows and no internal transitions, to which I am sending events that are clearly in the transition table for the state that the machine is in, yet the no_transition handler is running for this particular event. I have not yet been able to discover any reasons for a compiling transition table to fail to process an event that is listed in the row against the source state. Have I missed something fundamental? Regards, Archie