When links configured as part of an SLB group are shut down or brought back up on both SLB active and SLB standby switches, the SLB status on an SLB standby switch does not get updated until the ARP timeout happens.
Workaround: There is no workaround. Check for the availability of a patch for this issue. You must wait for the default ARP timeout to happen before the SLB status gets updated.