I've a very strange problem with RNIB navigator. The app quite simply won't work The app opens, but then closes really quickly before any interaction is possible. I've tried deleting and redownloading and that does no good. It worked fine previously. I'm using IO;13.2 on an iPhone 8 and I think it's version 3.7.2 of Navigator. The latest version anyway. I'm guessing that every time I remove the app there is a corrupted setting or footprint lef behind so that reinstalling doesn't work. Any help would be greatly appreciated as I do make quite a lot of use of this app.