Twitter has changed the old emoji to Twemoji on Android and it will be shown in the app or desktop together with the Tweet Deck.
Twemoji is the upgraded version of emojis so that subscribers won’t see the blank boxes instead because Twemoji will have their own version of emojis. Twitter uses EmojiCompat, a supportive compatible to the library with Androids which allows the developers to use Google’s emoji up to date, for it to be accessed.
Users with Android Kitkat can see this update on their twitter accounts. Subscribers can set their Twemoji on their accounts by selecting it instead of their phone’s emoji set. According to the post of Emojipedia, “Testing of this feature had been taking place for a subset of users since at least March 2018”.