Similar issue, I believe. Make sure you check that the skylight is on Stationary or Moveable…
My issue is that I’m trying to use physically based lighting, and the exposure is just going wild. I set everything in the auto-exposure correctly, but now when I turn on Real Time Capture for the skylight, only a small region (around what I believe are the coordinates of the lightmass importance volume or the postprocessing volume) is actually rendered within a sensible exposure range.
Seems like the clouds are contributing to real time reflections though, when enabled
