I am one of the JMRI developers, and am the developer principally responsible for this code.
Bobby Abrams:
This is an issue in JMRI, and not something to be dismissed as "not worth troubleshooting".
Do not troll JMRI users when they report problems to the JMRI developers unless you actively do not want support from us when you encounter issues with JMRI.
Randall
JMRI Developer since 2011.