Display memory (VRAM)

Hello Everyone
I tried to search here to see if anyone faced similar issues

but in DirectX Diagnostic tool , it shows Display Memory (VRAM) 0 MB
while Total memory is 18428 MB
DirectX 12






Is this something expected ?
I'm trying to run COH 3

I would say that I can ignore the message but it is affecting the Texture Detail, the game is forcing me to select Low for Texture Detail because of this issue

 

any help ?