The "Where used" action does not work for newly added objects when viewing in SmartDashboard connected to the Log Server.
Debug of FWM daemon on the Log Server (per sk86186 / sk33207) shows:
CSrvRefObj::Dereference - could not get object {...}
CPMISrvObj_Get: Failed to dereference object with err 0x80004005 (Unspecified error).
get-object: Unspecified error
Cause
On the Log Server, the $FWDIR/conf/CPMILinksMgr.db file, from which the "Where used" action gets its information, is not updated after adding new objects to the FireWall rules.