Background not working on dual monitor?

[Amoninuse]

For some reason a 3840x1080 img won't set on dual 1080 monitors. I've been using this image for a while and never had an issue, not sure what happened. I've tried every type of fit, and for some reason tile isn't doing the trick anymore. Tried a couple different images as well, every time it only shows the right side of the image.

 

[Amoninuse]

Solved this by restarting, not sure what happened.