Breaking double tall grass results in a flash of a peony flower

Breaking double tall grass results in a flash of a peony flower
Not the flash of the peony flower
Not a flash of the peony flower

Playing on survival servers, on singleplayer worlds alike this bug always happens when hitting the bottom part of double tall grass

1. Find double tall grass, or place some.
2. Break the bottom of the double tall grass.
3. See the double tall grass break and the flash.