When default text with any font (Noto Sans or Default) is typed on one line adjacent to a Unicode character, the entire line changes to the Unicode text (seen on Java when Force Unicode Font is toggled on).

On Java edition, this never happens and will only display default text with the Unicode symbols unless Force Unicode Font is toggled on.

Is this a bug?

STEPS TO REPRODUCE:

1. Open Chat
2. Type some text and any symbol that is not ASCII

EXPECTED RESULTS:

Keep the ASCII font like said ascii.png while keeping the other symbols Unicode style.

OBSERVED RESULTS:

When ASCII and Unicode get mixed up, only Unicode shows up, and depending on what font you use, the text appears smaller in chat then any other message that only uses ASCII.