Lights-Out Not Supressing Automatic Backup

I have a HP X510 running WHS2011 and version 1.5.5.2136 of Lights-out

The WHS2011 client computer backup is scheduled between 2am and 3am, it is not configured to wake up computers to back them up.

I have a lights-out calendar entry that wakes the server at 02:02 and suspends it at 02:45

Lights-out is set to wake the client machine at 02:02 and run a backup (which it completes successfully) and then suspend the machine

However at 02:07 the WHS2011 also completes an automated backup of the same machine as well

According to the manual "when you enable a Lights-Out backup inside of the standard client backup schedule, Lights-Out suppresses any additional Windows Home Server 2011 backup."

So my question is what do I need to do to make sure only Light-Out completes the backup?

I've tried varying the calendar entry to start the machine earlier that the WHS2011 client computer backup schedule but the same issue occurs

Thanks in advance