Do you have a Japanese keyboard installed? If not, your computer might be rending it in Chinese instead, hence the difference. It should look like the bottom picture.
It looks like a WK bug to me. If the saw radical looks Japanese on the review page but Chinese on the dashboard, then it shouldn’t matter what keyboard is installed.
Hey everyone! So, we do use an image for the radical, not text/Unicode. But I’ll check in with the team as to why it looks so different on the dashboard–thanks for pointing this out!