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IME does not work with Windows 10 version 2004 when programs run in sandboxie

I have a clean installation of windows 10 version 2004 (traditional chinese taiwan).
After a few tries, I found IME input does not work in sandboxie 5.33.3 or 5.33.6.
I can't type non-english character in notepad or url bar of chrome if they run in sandboxie.
When run outside sandboxie, IME tool works properly.
Also this problem does not occur in windows 10 1909.
How can I work around this problem.