Starting the CUI transaction cause the transaction to hang and the 'x' system stays on. These two messages are shown at the system console:
CACI100I CUI CICS AUTOSTART IN PROGRESS
CACI130I CUI XFCS STARTUP IN PROGRESS
CICS stays up and running.
Add AST0, ASH0, XXFC, CUI and CUII to CICS basic security manager (BSM)
or change SEC=YES to NO in the DFHSIP.