Recent update v8.4 on my iPhone 6s shuts down unexpectedly repeatedly as it tries to sync. I removed the app, reinstalled, and it went all the way through the sync before it crashed again. To
I'm guessing this iOS 11 version wasn't properly tested in the last iOS 10 version. This has happened before, unfortunately. Back level testing is crucial because not everyone can or wants to update right away. All apps should be backwards compatible or leave the app store (in MLTHO). By the way, the crash just forces the app to the background; when you bring it back to the foreground, it tries to sync again and then crashes. It's fun for about 5 minutes, but then I get bored.
I submitted a ticket, but the thought it could take up to a week for a response seems a little ... excessive. Or is it just me?