I am a Macos ventrura user. When typing in Korean, the second letter of the bullet is omitted and disappears. This happens on both my MacBook and iMac.
In the attached video, the first and second words are the same word, but only the second word is typed correctly and the first word is incomplete.
https://www.icloud.com/iclouddrive/0af44AFzgDOHAT5NVirtmH_tw#korean_letters