Can't get displacement to work

[aiden_humphrey]

Hi there,

I've been using Thea render professionally, and am considering moving over to Vray. I'm doing a simple test to get displacement working.
I created a corner, grouped it, and then applied the displacement modifier to the group.



I applied a brick material to the group. (I did not apply this directly to the faces, but only to the group as a whole.)





I made sure displacement was switched on for this group and also turned on "Keep Continuity."
I'm using RTX rendering (3090RTX GPU). I should mention I get the same problem on CPU and CUDA as well.




Here is the output:



I get this whether I'm using interactive or final render. CPU, CUDA and RTX all lack displacement.

What am I missing here?

[aiden_humphrey]

I should also mention that I get the same result
when I apply the displacement to the material itself.
I understand that this method of displacement will soon be deprecated,
so I didn't feature it in my initial request for help.

[konstantin_chaos]

Addressed here:
https://forums.chaosgroup.com/forum/...h-displacement