When running OmegaT 6.1.0 on clean instaled Windows 11 with Japanese environment, Contetns for Tip of the Day become weiered -- mojibake. It is because HTML contents do not have "Charset" meta data and HTML parser library fall back to system default ebncoding, that is Shift-JIS in JA environment.
I used to use Windows environment for development to configure universal UTF-8 is ON.
I found the clean installation of Windows 11 still become deefault to be SJIS even in year 2025!