Sounds to me that you aren't even in the Iray renderer. You need to specifically chose it. 3Delight is still the default.

Short videos worth watching:

https://www.youtube.com/watch?v=NQuaK-ft0I8

https://www.youtube.com/watch?v=L5FZ5gS9v50

https://www.youtube.com/watch?v=qa07FN44w7Y

https://www.youtube.com/watch?v=FlHPadSm8aA

Laurie

Iray is the default. However if you choose 3Delight, it will stay there until you change it to something else.