In the MTC-DBM User Interface (UI), selecting the HISTORICAL INTERVAL option encountered the error message CAUE9527EX along with the message:
COMPLEMENT: U2X XMAN IS INACTIVE
The cause of this condition is unknown.
Release : 20.0
Component : CA Detector for DB2 for z/OS
This problem was resolved by stopping the PXNPROC task (that also takes down the subordinate PXNPROCE task), and then restarting the PXNPROC task (which automatically restarts the PXNPROCE task). This process corrected the CAEU9527EX error message.