Corona materials appear black in Viewport C4DS22 / Windows

Corona Corona for Cinema 4D General
1

Hi, I’m new to Corona and I am finding that the materials are Black in the viewport.

I have toyed with all the setting in display menu but to no avail.

Any tips?

Thanks in advance

Alernius

2

Use a recent V6 daily (best the RC).
V5 is not fully compatible with S22.

CU
Michael