Maybe this issue is old, but it occurred to me just now when I used the German UI on 6.13 RC 1: Bible references don't work unless by chance the bible book name could be understood in the German language as well (thus Psalm and Genesis work, some of the other Latin names for the five books of Moses as well as Titus probably work, too)

also, there's no Edit button on the top right of the Reading List tab. Compare the English UI: