Appreciate any feedback about this -
Exception caught while parsing the file ..\tcdata\tc_solutions_preferences.xml: 'PREF_report_operation_failed'
Exception caught while parsing the file ..\tcdata\tc_preferences.xml: 'PREF_report_operation_failed'
ORA-24550: signal received: Unhandled exception: Code=e06d7363 Flags=1
There is a similar issue found with list_users described in faq 001-9270289 in Solution Center.
It looks like the cause there was shared memory corruption, and the solution was to shut down the servers and clear (delete) the shared memory directories.