TDP1869 TDPSYNC: "ISM" GONE WHILE LOCK HELD
While attempting to ascertain whether or not a Switch request completed successfully, TDPSYNC could not locate an "ISM" associated with a session being switched even though the proper lock was held.
This condition is indicated by an abnormal termination rather than a message. It indicates an internal error in TDP.
Collect diagnostic information (including the memory dump, if any) and contact Customer Support personnel.