OmniGraffle for iOS on iPad Crashes on start


I upgraded to iOS 12.4 this week and now OmniGraffle “reliably” :-) crashes on startup.

This is true for my original iPad Pro 12.9” but not for my iPhone 10S MAX.

Has anyone else seen this? How to debug?

(It was an interesting, fiddly, experience creating diagrams on a plane on the iPhone.) :-)