Models in shaded areas of scene are black

I have a scene that is using baked lighting, but for some of the models there doesn’t seem to be any GI lighting. I have tried modifying the settings for my SkyLight, but it doesn’t seem to have any effect. I also tried upping the light baking quality, but that didn’t work either. It also doesn’t seem to be related to the specific models or materials.

Have you got a reflection capture in there?

Yes, I have 2 in the scene

■■■■, worth a shot…