Some fixed versions only include Hiragana and Katakana but omit extended Kanji. Use the HGP Mincho B (Full JPL) variant. The standard "B" version only contains 2,976 Kanji; the "B (Full)" contains 6,355.
: You can often "fix" missing Japanese fonts by installing the Japanese supplemental language pack through Settings > Time & Language > Language & Region > Add a language . Free & Open Source Alternatives