Any text containing the “en dash” will show up as the Unicode font (GNU Unifont)
This affects all text in the game, including chat, options, music discs and the in-game tutorials (yes, I checked them)
Sadly I don’t have any screenshots, but it does happen. This is because the Bedrock Mojangles font uses a modified version of the pre-Java 1.13 “ascii.png,” which only has the hyphen. I can tell because it has the old accented characters but the new copyright sign.
This is working as intended, see MCPE-139157: Including a single special character changes the font of the entire message .