Microsoft released an update to Windows Creator, KB4020102
Its contains a fix for unicode rendering which caused some languages to show garbage characters (e.g. Hebrew)
Addressed issue where some non-Unicode fonts (Courier, MS Sans Serif, etc.) do not render characters correctly on non-Latin, single-byte system locales (Greek, Hebrew, Arabic, etc.). Black bars or other artifacts appear instead.
This fix should show when checking for Windows Updates