Outside temperature oddity

Anyone have any idea why the Entune screen would start showing -999 as the outside temperature while the central gauge unit shows the normal temperature? Also, if I scroll thru the weather app on the Entune unit, I can check local and recent locations, including my own town, and they also read correctly. As soon as I go back to the Home Screen, I get that -999 again.

 

Bad place to ask a technical question. Now if you want to know what others feel needs to be mod'd, and what after market shit to bolt on to your truck, then this is the place.