When changing the render mode from "Global Illumination" to any other mode, such as "Normal" the preview will not reflect the mode changed. One will need to switch the Quality from Full to Interactive to trigger the change. And if the Quality was at Interactive, then switching to Full to trigger the next change.
When changing the render mode from "Global Illumination" to any other mode, such as "Normal" the preview will not reflect the mode changed. One will need to switch the Quality from Full to Interactive to trigger the change. And if the Quality was at Interactive, then switching to Full to trigger the next change.