Hello jeffdanger.
Welcome to Apple Support Communities. I understand that since upgrading to iso 13.1.2 when you swipe in the Edison mail it becomes unresponsive and closes. I’m happy to help.
Please use the steps here to restart your iPhone: Restart your iPhone, iPad, or iPod touch - Apple Support
Once you’ve restarted, are you able to use the app as expected? If not, please use the steps. here to check for and install any app updates: Update apps or use automatic downloads - Apple Support
You can find these steps and more in the article below:
If an app unexpectedly quits, stops responding, or won’t open - Apple Support
Take care.