that was the TestFlight latest yesterday (11.5.2).. both iPhone and iPad would crash when open.. I deleted the iPad App, and loaded from Apple App Store (11.5.0.1).. the iPhone (11.5.2) continued to crash, while iPad (11.5.0.1) was stable.. I did submit report from crash, so you should have it..
What is the latest Public Beta? .. Test flight, yes?