Mistakes I imagine.  I’ve sent bounties for a few of these mistakes already..  I got a response for one of them saying that that particular kanji could be written with four or five strokes so they left it where it was.  Sorry I forget which kanji it was, at the moment..
It doesn’t surprise me a whole lot since they don’t focus on writing at all anyway.  I bet people learning without knowing anything about strokes would never notice…  Since they never learned that some strokes continue for two or more lines in a kanji…
=^..^=