Sup0108 A Deployment Or Update Operation Is Already In Progress Best !new!

: The iDRAC UI may display this message even when no operation is actually active if the Lifecycle Controller hasn't released its "in-use" flag.

The word in the log refers to the WBSearchJob or a best-effort attempt by the WSUS API to handle concurrent requests. It essentially means: "I would love to help you, but I am already running another critical job. Please wait." : The iDRAC UI may display this message