That sounds like a bug. Try the normal troubleshooting tips - close the app and reopen it. If that doesn't work, restart your phone.
If it's still an issue, there's not much you can do but wait for the newest update.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.