This seem to me not correct at least aswell in german as in english:
As far as I know E-Dur/E-Major as 4 # not 3 b which is Eb-Dur/Major…
I’m pretty sure this was confirmed as a bug in another thread a few days ago…
I just couldn’t find any similar thread of the last weeks.
However, I just dont want to miss any chance to help improving Dorico 
Ok I really missed that.