Strange WSUS Issue on Macs

[ITGURU]

I have all desktop PCs under an OU in AD which has a WSUS GPO assigned to it.

All desktops check into WSUS as normal.

When i view all the clients within the WSUS console i have 24 machines which are always on a higher windows build CU than all the others.

These 24 machines are Apple Macs setup with bootcamp with windows on.

I'm unsure why , even though they are runnings windows, they are not complying with approved updates in WSUS and are always downloading the latest update.?

 

Anyone else come across this?