Widget update deployment

Hi,

If I make a small change to a widgets code in Xocde, just adding a sort descriptor to a fetch request, a small line of code, does it make the whole widget go black and the user has to delete the widget and add it again?

I made a small change to a widgets code, then ran it through test flight to my iPhone and the widget is just black now.

Update: I think adding the sort descriptior to the fetch request is causing a memory issue on my iPhone 7. That is what Xcode is saying I think.