backspace/space keys don't work with ibus-hangul(Korean)

Hello,

I use Fedora KDE 33 and ibus hangul. I’m not sure when this problem was first came up, I guess when i upgraded Fedora (32 → 33) three month ago, It was happened and still not working.
I can type Korean but can’t remove any characters and type space key on every libreoffice software(calc, writer, draw…).
With any other software, It works fine but only libreoffice has this problem.
My co-workers use different laptop with same environment to me, she has same problem too.

If you have any solution, please help.

Thanks.

I’m using Gnome 42.4 on FreeBSD 14.0, also using ibus, and I’m getting EXACTLY the same results when writing in Hangul in LibreOffice. Any other app works fine, including a QT app like Anki, and also OpenOffice. I’ve tried many different tricks and configurations, but nothing works.