It might seem odd that I’m posting a bug with Yomichan on the WaniKani forums, but this bug only happens on these forums. When you use Yomichan to lookup a Japanese word on the page, it shows a little popover (image below). Normally clicking out of the box closes the popover, but this does not work on the WaniKani forums.
Additionally, the bug doesn’t even happen on other discourse forums, such as https://discourse.mozilla.org. I tested there by typing the japanese text in the search box and the issue does not occur (doing it this way does cause the bug on the WK forums too, just like using it in a forum post).
I believe this has been happening for less than a month, so maybe the WK team updated the forums recently or changed some configuration.
After clicking away it should close but doesn’t