[Adobe Reader] Fill and sign not showing kanji

Using Adobe Reader on my Mac. Fill and sign is not showing kanji when typed. It's showing other characters like hiragana and katakana, but for kanji it's not showing. Weirdly enough, it's showing kanji after hiragana or katakana, but when characters before kanji are deleted kanji is also disappeared. 

OS: MacOS Big Sur

Adobe Reader version: Adobe Acrobat Reader DC Version 2021.011.20039

Adobe Reader Version

Architecture: x86_64
Processor: Intel
Build: 21.11.20039.0
AGM: 4.30.115
CoolType: 6.0.3
JP2K: 2.0.4.50016