Greetings, is it normal that the Castle of the Crow has a Line of Sight of only 5,556 tiles and not 9,111 tiles like all the other keeps and even the basic Japanese castles? 
yes it is normal. Japanese castles are op already.
I mean that Japanese castles already have 9.11 line of sight, like the basic keeps, it’s only the landmark “castle of the crow” which has a line of sight of 5.55, why would the landmark have less line of sight than all the other castles or keeps?It doesn’t make sense that this landmark which “acts as a Castle” doesn’t have the same line of sight as other castles; it has less line of sight than the range of its own weapons. 
Write this post as a bug post imo.