I’m using UE 4.25 and using Webbrowser. Issues come from when I press some key when enable the IME option using another language different EN(Such as Ko,Jp,China…). IME allows input of Windows change status enables to be disabled.
According to Release notes: What's New | Unreal Engine 5.2 Documentation
New: Chromium Embedded Framework (CEF) upgraded to branch 3071 Win32/Win64/Mac. Added web browser support for foreign language character input via IME.
But Webbrowser still occur issues when user input IME.