Playing with a bot I encountered the display issue in the attached image.
(http://imgur.com/yD4dWJX)
It seems to calculate the total score fine for me, and it displays the correct score on gardens for my bot opponent. However it seems it doesn't display the correct calculation of my garden score.
Hope this helps.
Sig
I noted the same issue. Final scoring at the top is correct, however, the breakdown at the bottom doesn't show the proper score for Gardens in my section.
I had the same issue.