I have a wood planking material along the deck of my ship model. I'm not sure what happened but suddenly the material looks weird in Render view but fine in Material view. To emphasize, it did look good earlier and only recently started to look like this.
Edit: Some interesting findings. If I assign the material to any other face on the object it appears this same weird reflective thing. I duplicated the object and the material worked just fine on the duplicate. I'd use the duplicate, but I still wanna figure out what's going on here.