very major. The filename created had two slashes in the string
("/tmp//MAG...") because the temporary directory already has a slash
in the string. This makes no practical difference but looks odd when
printed to the terminal. The major error is that the Tcl script
that re-establishes the timer after a backup had a typo that caused
the timer never to be reset, resulting in crash backup files that are
created and written once but never again. This egregious error has
now finally been fixed.