A bit of desperate situation, I've got a pretty large night-time scene that I've been working on for the past 3 weeks. Recently I noticed that a light that I placed as the moon early on, is no longer rendering. I've also created multiple street lamp meshes with lights placed in them, however only a handful of lights appear in the render.
I've found that this is a common issue with 2.81, so I updated my OS and upgraded to 2.82 with absolutely no luck. I found that I can open the project in 2.80 and render it correctly, however that version won't let me apply changes to the scene, so I've had to flip back and forth from 2.82 to 2.80.
Does anyone know a workaround for this in 2.81 or 2.82?