SCOM 2012R2 Upgrade Agent upgrading the object above selected

I've upgraded our SCOM 2012 environment to 2012 R2 this morning successfully including checking for all updates and applying the latest windows updates. I've identified an issue when upgrading agents where by the object selected is not upgraded an instead the item above that selected is. To reproduce:

1. Select Pending Management under Device Management
2. Sort the agents by name
3. Select the top server and whilst clicking CTRL select the other servers that you wish to upgrade
4. Click Approve. Check the Agent Task Status. For us, the top agent is correct and upgraded but for every other selected server, the server above that selected is upgraded!

Can anyone else confirm that they are experiencing the same? I've completed this both from the Ops Console on the Server and a Win 8 client console.

EDIT: Furthermore, If you sort by name and select the top server and next 2 (3 in total), the upgrade only apply's to the first 2 servers... Weird!