This is the infamous FE (FilteringEnabled) R15 Emote Bug .

Zephyr pulled up a translucent terminal, the code for the shimmering in crimson. It was broken, a jagged mess of syntax errors and deprecated hooks. Without a fix, the city would remain a ghost town of statues. The Source of the Corruption

Someone did the "Zombie Dance" emote. It played. Then repeated. Then spread .

If you want to use many emotes in your own game:

Here are several concise options you can use as a title, description, or commit/message for a script fix addressing FE All R15 emotes:

To achieve the you need a three-part architecture: