On the roster pane in service mode a reset to defaults is an option. This is vastly different than a factory reset. If a decoder has gone "stupid" a reset to defaults, usually, will not repair it, where a reset to factory often will.
I think the Reset to default should be removed.
A better idea would be to change the "Reset to Defaults" to be "Factory Reset."
WE may have just been bit by this in users group thread 90952.