V4MD: CloseConn() not always enough?

[Andrew Sinning]

In Authoring Director projects, I am constantly starting and restarting
Valentina, opening a connection to a db, stopping the movie, making a
change, and then starting up again.

It seems like closing the connection to the db is not enough.  Often,
when I stop the movie and execute CloseConn(), when I run the program
again, I can't connect.  I have to do a ValentinaShutDown(), and then I
can connect.

Is this consistent with anyone else's experience?  What might I be
overlooking?

Thanks.