Data Protector 8.12 VE Intergration and Optimize disk / Space efficient backup not working

I have tried every possible combination of Optimize disk, Enable CBT, Use CBT under the option: "Advanced virtual machine configuration"

But every time I backup a VM, Data Protector makes a backup of the whole image (60Gb) while only 10Gb is actually used.

 

I have checked that CBT is enabled on the vSphere environment.

 

Anyone got this 'feature' working ?

 

Regards,

 

Martijn