I plugged in AO. Oops. I forgot to mention that.
I recently learned that BentNormal can be used to improve AO, and I’ve been experimenting with it.
From the toast description of the “Allow Static Lighting” item in the Engine Settings, it seemed that disabling it would allow Materials that use AO and BentNormal to work with Lumen Global Illumination.
I followed the guide below as a walkthrough.