The primary MUF correctly received the EOJ command but there were some active jobs that delayed the EOJ process:
DB01311I - COMM EOJ (USING MVS STOP 'P')
DB01335I - CONSOLE SCHEDULED - COMM EOJ (USING MVS STOP 'P')
DB00247I - EOJ REQUESTED, NO NEW CONNECTIONS, EOJOFF AVAILABLE
DB00244I EOJ DELAYED, ACTIVE TASKS, JOB1
Primary MUF will complete the EOJ process when JOB1 ends or disconnects from MUF.
If JOB1 is a CICS region, then issuing a DBEC DISConnect releases the Datacom tasks in use and MUF will shut down cleanly.
If it's a batch job (or a TSO user), you can wait till it completes or cancel it.
If it's a Datacom Server region, it must be shut down.
If it's a CA Solution, you should close or suspend it, to free the Datacom threads.