onlyskin
填・塡 alternate forms not labelled correctly
填 - doesn't show up in Joyo list but gets heisig keyword 塡 - shows up in Joyo list but doesn't get heisig keyword
Wikipedia https://en.wikipedia.org/wiki/List_of_j%C5%8Dy%C5%8D_kanji states: The "New" column attempts to reflect the official glyph shapes as closely as possible. This requires using the characters 𠮟, 塡, 剝, 頰 which are outside of Japan's basic character set, JIS X 0208 (one of them is also outside the Unicode BMP). In practice, these characters are usually replaced by the characters 叱, 填, 剥, 頬, which are present in JIS X 0208.
It seems the KANJIDIC file has both versions present but only one is tagged with a grade.
There's a similar problem with 奥 and 奧, but the old character is labelled Jinmeiyo in the API