Player#getTargetEntity returns null for 1.21.10 mannequin

[einfachBlu]

Expected behavior

var result = player.getTargetEntity(100, true);
// Result is null when aiming at mannequin entity

Observed/Actual behavior

It just returns null

Steps/models to reproduce

spawn a mannequin with code (/summon seems to work)

Plugin and Datapack List

Paper version

This server is running Paper version 1.21.10-115-main@af06383 (2025-11-21T23:42:01Z) (Implementing API version 1.21.10-R0.1-SNAPSHOT) You are 2 version(s) behind Download the new version at: https://papermc.io/downloads/paper

Edit: the 2 version updates available did not fix the issue

Other

for some reason, the /summon seems to work but spawned with code does not show, even tho in F3 it says that there is the entity.

[Machine-Maker]

Hmm, I cannot replicate this. I just have a blank plugin with only

@EventHandler
public void onTestEvent(ChatEvent event) {
    System.out.println(event.getPlayer().getTargetEntity(100, true));
}

and after I summon a mannequin in, and chat while looking at it, it prints out the entity.

[einfachBlu]

This is the method where i spawn the entity, where its not detectable with your test code. It might be because of the setVisibleByDefault() or something else. If you spawn the entity with this code (remove the gameobject and entity component stuff, not relevant for this case), i guess you will be able to reproduce it

private Mannequin spawnNPC(
      Location spawnLocation,
      EntityComponent entityComponent,
      Player viewer,
      GameObject gameObject) {
    var world = spawnLocation.getWorld();
    var entity = (Mannequin) world.spawnEntity(spawnLocation, EntityType.MANNEQUIN);
    entity.setCollidable(false);

    // Player Visibility Filter
    entity.setVisibleByDefault(false);
    viewer.showEntity(this.javaPlugin, entity);

    // Remove Gravity
    entity.setGravity(false);

    // Skin
    var skinData = entityComponent.skin();
    entity.setProfile(
        ResolvableProfile.resolvableProfile()
            .name("")
            .uuid(UUID.randomUUID())
            .addProperty(new ProfileProperty("textures", skinData.texture(), skinData.signature()))
            .build());

    // Apply configured entity settings
    entity.setSilent(entityComponent.silent());
    entity.setAI(entityComponent.ai());
    var pdc = entity.getPersistentDataContainer();
    pdc.set(GameConstants.GAME_OBJECT_ID_KEY, PersistentDataType.STRING, gameObject.id());
    return entity;
  }

[Machine-Maker]

It's the entity.setCollidable(false); part. This also controls the "pick-ableness" of an entity, whether a ray trace lookup will interact with it. Like a marker armor stand will have the same behavior, where it doesn't show up.

[einfachBlu]

Ah, makes sense but isn't there any other way to allow the method without making the entity collidable?