When playing on multiplayer, ever since 1.15 was released, interacting with any interact-able block or entity (doors, chests, barrels, red stone components, etc) on multiplayer servers results in an animation double where the initial hand animation is performed, then once the chest is open it does it again (see video).

When playing on the same server, same connection, same world but in an older version of Minecraft, this does not happen. This happens frequently in 1.15 versions and can be frustrating if you deal with OCD.