I added to my realm a Resource Pack that added new glyph icons (emojis, like the buttons ones) to the game, and they showed up fine on mobile and pc, but when I joined the realm on Nintendo Switch they just didn’t appeared, the icon shows just like an empty space in the text.
But vanilla icons worked, so we tried modifying the texture of one of the vanilla icons, specifically the A button of Nintendo Switch, and we tested on a multiplayer world, I joined there from Switch and the A button texture was changed, how was supposed to be, after uploaded same pack to the realm, the A button was showing exactly as the A button, the texture was now applied. After that I realized this was a bug.