Unusual occlusion on static mesh

Thanks Sam. When you say ‘UV Island’, I assume you mean faces in the UV that aren’t connected? The LM’s are high - 2048.

Also, In other scenes it appears to be ok, however in this scene it seems to be exacerbated. Could there be any settings that are actually exacerbating the problem? Again, this is someone else’s scene so I’m not sure what’s been changed.

Also, the material goes from hi-res to low-res when this occurs. Given the LM’s and materials are on a different UV channel, would the mistake in the LM’s cause problems with the material also?

Cheers.