XCODE 11 Broke DateFormatter? : One day, the app worked. The next day I updated to Xcode 11 and now the app crashes with "unexpectedly found nil" on line 27 (when executing line 15) in the picture.  

I asked my co-worker who doesn't yet have Xcode 11, and his doesn't crash. we are on the same branch/commit...everything. 

Any advice? any way around this? my code should appear in that image link... need 10 rep to post images.
https://i.stack.imgur.com/103AU.png



  [1]: https://i.stack.imgur.com/103AU.png