Disclaimer: This post isn’t going to be up to the level of one of Brian Smith’s technical posts and is based on my own experiences and testing. You’re mileage my vary and I encourage you to vigorously test anything detailed in this post before attempting yourself, I accept no liability should you run into issues etc etc. Recently there have been a number of posts in the project forums from users that have been running into issues when they have deleted a PWA instance incorrectly.