JPEGs exporting with sections of different color

Hi all,

I've been exporting JPEGs out of one of my photoshop files and for some reason the resulting JPEGs will have a random square that looks like it's a different blend mode than the rest of the document. I've checked the document and I have no hidden or non-hidden layers with a square that might be causing it. It also moves locations upon exporting. I cannot figure out for the life of me what's causing it! PNGs export fine, it appears to only be JPEGs.