Somehow that error doesn't make sense to me. Is it really an error or something related to the asset in question. Everything around it, close to it, is perfectly fine. No haziness.
Perfectly fine is not how I would describe this render and any render I've seen from this update.
I don't know which direction L&P's artstyle is going for, but these last renders are not close to the quality of the previous updates.
Everything looks cell shaded, almost like he's doing 20% of the render and then using a denoiser to clean it up, which gives this cartoonish look.
That could explain exactly why we see this effect under the table.
Either that or we're looking at the work of a different artist.